Mosaics of Hagia Sophia Istanbul: What They Are, How to Visit Them, Trivia

Istanbul’s Hagia Sophia Mosque is much more than a monument: it is a nearly 1,500-year history of stone, gold and faith.

Founded in 537 AD by Emperor Justinian, it was the largest church in the world for nearly a millennium. Then it became a mosque in 1453, a museum in 1935, and a mosque again since 2020.

But despite these changes in identity, one thing has remained: its extraordinary mosaics.

We are talking about works that do not just decorate: they tell of emperors, saints and theological dramas, reflect wars, spiritual revolutions and artistic rebirths.

That is why the mosaics of Hagia Sophia are not just art, but true visual documents of an entire civilization.

Today it is not always easy to see them. Some are covered by sheets out of respect for the new religious use of the building. But if you know them, you can imagine their power even through a few visible details.

And in many cases, they are worth visiting live, if only to savor the unique atmosphere of this space suspended between heaven and history.

Find out how to book your visit! Visit the page dedicated to tickets for Hagia Sophia.

History of the mosaics of Hagia Sophia

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The mosaics of Hagia Sophia were not always as we see (or imagine) them today.

Their history is made up of additions, deletions, restorations, and real religious and political twists and turns.

Aniconism and sober origins

In the beginning, mosaics were without figures. We are talking about the late antique and early Byzantine period. Decorations were limited to golden crosses, floral motifs, geometric patterns.

This “abstract” approach reflected both the Roman architectural tradition and Empress Theodora’s desire not to upset Eastern Christian communities, such as the Syriac and Egyptian communities, which were disinclined to depict the divine.

The darkness of iconoclasm (730-843)

Then came the earthquake: iconoclasm. For over a century, sacred images were banned from the Byzantine Empire. Many figurative mosaics were destroyed or modified.

Some saints’ faces were erased and replaced with crosses or decorative motifs. During this period, the interior of Hagia Sophia was emptied of images to make room for dogma and imperial power.

The mosaic revival after 843

But in 867 something extraordinary happened: with the official end of iconoclasm, the church was filled with magnificent new figurative mosaics.

This was the time of Photius, Patriarch of Constantinople, and the emperors who used art to celebrate the return to Orthodoxy. The Virgin and Child in the apse, dated precisely to 867, is the first sign of this revival.

From here on, for five centuries, the mosaics of Hagia Sophia became more and more grandiose: Christ Pantocrats, kneeling emperors, majestic Madonnas, scenes of intercession and power.

Each figure is a theological, political, aesthetic message.

The main mosaics of Hagia Sofia Istanbul

Hagia Sophia is a visual encyclopedia of the Byzantine world. Its mosaics are masterpieces that read like golden pages written with stones.

Some are perfectly preserved, others only partially visible, but all of them tell something unique.

Christ Pantocrator

Among the most fascinating mosaics, and now unfortunately no longer visible, was once the Christ Pantocrator in the central dome of the Hagia Sophia.

Imagine the effect: a colossal divine figure, suspended 55 meters above the ground, which dominated the entire building with its gaze. It was the visual and theological heart of the basilica.

Christ Pantocrator was not only a sacred image: he was the supreme symbol of divine authority. With one hand he blessed, with the other he held the Gospel, while his face, stern and solemn, embodied omnipotence and justice.

This type of representation was introduced after 843, at the end of iconoclasm, as a triumph of the sacred image and visual confirmation of Byzantine orthodoxy.

Dome mosaics developed from the time of Basil I and continued for centuries, adapting to the theological and political needs of the emperors.

According to the sources, Christ stood in the center of the dome, while the four corners were distributed with the Seraphim, six-winged angels protecting the divine throne. Some of these are still visible today, although restored and partly repainted over the centuries.

During the Ottoman era, the dome underwent several restorations and the mosaics were covered, out of respect for the Islamic tradition that forbids anthropomorphic representations in mosques.

To date, the Pantocrator mosaic has not resurfaced and may have been lost forever.

Yet, its echo remains powerful.

Historical sources and descriptions tell us that this image had a mystical power, so much so that the faithful felt God’s presence in a physical way, enveloped in the reflected light of the golden tiles that decorated the vault.

The Virgin and Child

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If there is one image that marks a true historical turning point in the decoration of Hagia Sophia, it is this one: the Virgin Mary seated on a throne, with the baby Jesus on her lap, in the center of the apse basin above the high altar.

It is the first major figurative mosaic created after more than a century of a total ban on sacred images, imposed by Byzantine iconoclasm.

Theyear 867 runs: the Church of Constantinople has emerged from its “night of images.”

Patriarch Photius, during a solemn homily, celebrates the return of the face to the divine.

His words tell us that this image was not just a work of art, but a political, spiritual and cultural statement.

The Virgin is shown frontally, in a regal position, seated on a backless throne, her feet resting on an ornate pedestal. The little Christ blesses with his right hand, while with his left he holds a scroll, a symbol of divine wisdom.

All around: golden tiles that reflect the natural light from the apse, creating an almost supernatural aura.

Above the scene, an inscription states:

The images that the impostors had torn down, the pious emperors have here again raised.

It is a direct blow to the iconoclasts and a theological manifesto of the empire that regains symbolic control of faith through image.

From an artistic point of view, the mosaic combines majesty and simplicity. The proportions are solemn, the gestures calm. There is no drama, but a silent affirmation of eternity.

This style, typical of the Macedonian revival, aims to restore balance and solemnity to Byzantine religious art.

Today the mosaic is still visible, but partially covered during Islamic prayers.

Authorities said this is a temporary solution and mobile curtains will be installed to allow visitors to view it at appropriate times.

The mosaic of Emperor Leo VI

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As soon as you cross the main threshold of Hagia Sophia, if you look up, you will find it there, above the Imperial Gate: a mosaic with deep, powerful, and in some ways still mysterious meaning.

In the center of the arch above the entrance, Christ Pantocrator sits on a throne adorned with gems, in a solemn attitude. With his right hand he blesses, while with his left he holds an open Gospel.

The text, in Greek, contains two sentences from the New Testament:

Peace be with you. I am the light of the world (John 20:19 and 8:12).

But the scene becomes even more interesting with the person kneeling at Christ’s feet: a Byzantine emperor in a gesture of proskynesis, that is, of deep veneration.

He is probably Leo VI the Wise (886-912), although some scholars speculate that he is a symbolic rather than a historical figure.

Leo VI is known to have contracted as many as four marriages, which violated the ecclesiastical laws of the time.

Some historians see this mosaic as an act of public atonement, with the emperor asking for forgiveness directly from Christ in the very entrance of the basilica where he was being crowned.

On either side of Christ appear two figures in medallions:

• On the left, the Archangel Gabriel, holding a scepter;
• On the right, the Virgin Mary, in an attitude of intercession.

The message is clear: imperial power bows before divine power.

It is a masterpiece not only of art, but also of visual theology and political communication.

Today, the mosaic is clearly visible at the entrance to the building and not covered by cloths, making it one of the most easily observable for visitors.

The Deësis: Christ, the Virgin and John the Baptist

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Of all the mosaics in Hagia Sophia, there is one that is truly breathtaking.

It is the Deësis, a sacred and touching composition found in the south gallery on the upper floor of the building.

It is considered the pinnacle of Byzantine mosaic art, and not by chance: this mosaic marks the beginning of the post-Byzantine artistic renaissance in an almost pre-Renaissance style.

Made around 1261, after Constantinople had been recaptured by the Byzantines at the end of Latin rule, the Deësis is a powerful visual invocation of mercy and redemption.

The scene is simple but loaded with meaning. In the center is Christ Pantocrator, stern but human, looking with intense depth toward the visitor. On his right is the Virgin Mary; on his left is John the Baptist.

Both are depicted in an attitude of supplication, with their hands turned toward Christ. This is the moment of the Last Judgment: the two intercede for all humanity.

The power of the mosaic lies in the details:

• The faces are expressive, intense, almost realistic.
• The shadows and colors give a new depth compared to the earlier rigid Byzantine patterns.
• The mosaic tiles are tiny, carefully placed to create shading and three-dimensionality.

Not surprisingly, many scholars consider Deësis the first step toward Renaissance art, so much so that it recalls the style of Italian masters such as Duccio.

The Deësis was probably part of a larger decorative complex, but many fragments have been lost. Today the three central figures are preserved, but the lower part is damaged: some fragments seem to belong to the base of Christ’s throne, and a kneeling figure-perhaps Michael VIII Paleologus-seems to appear at the bottom, mutilated by time.

This mosaic is still visible today, although not always in ideal lighting conditions. It is one of the mandatory stops for those visiting the Upper Gallery of Hagia Sophia.

The mosaic of Constantine IX and Zoe

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Climbing into the south gallery of Hagia Sophia, you come across an imperial scene that looks like something out of a Byzantine court novel. It is the mosaic of Constantine IX Monomachus and Empress Zoe, one of the most emblematic works of the deep connection between power and image in the Byzantine Empire.

The mosaic dates from the first half of the 11th century, but its history is more eventful than we think. It is not a static mosaic: it was modified over time to adapt to the empress’s sentimental and political changes.

Zoe, an emperor’s daughter, reigned alongside as many as three husbands. Initially, the mosaic depicted her with the first: Roman III Argiros. But after his death and remarriage to Constantine IX, the faces were reworked.

Roman’s features were erased and replaced with those of his new consort. Zoe’s face was also changed, probably to unify the style or remove all traces of the past.

In the center of the scene is Christ Pantocrator, seated on a throne, with the Gospel in his left hand and his right hand raised in blessing. At his sides:

• Zoe, in sumptuous robes, holds out a scroll (a symbol of her donation to the church).
• Constantine IX, also in regal robes, offers a purse of gold (a symbol of the imperial offering).

Everything in this mosaic communicates authority, wealth, sacredness. But behind the splendor, there is a subtle message: the Emperor and Empress appear almost as “ministers” of Christ, visibly subordinate but still center stage.

Do not miss the opportunity to admire up close the decorations on the faces, the embroidered robes, and the golden auras. The level of detail is astonishing. Even in an age of intrigue and dynastic rivalry, mosaic art knew how to remain a powerful vehicle of legitimacy.

The mosaic is located in the eastern part of the south gallery, well preserved and accessible to visitors.

The mosaic of John II Comnenus and Irene

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Also in the south gallery of Hagia Sophia, next to the mosaic of Constantine IX and Zoe, we find another imperial scene: the mosaic of John II Comnenus and his wife Irene of Hungary, dating from the 12th century, probably between 1118 and 1134. It is the only surviving Byzantine mosaic in Constantinople from that era, and represents the continuity of imperial power even in the centuries of the Empire’s decline.

In the center, as in the scene with Zoe, we find the Virgin Mary holding the infant Jesus on her lap, in an attitude of blessing. On the sides:

• John II, in imperial robes, holding a golden purse: a symbol of the imperial offering to the church;
• Irene, in mirror position, holds a scroll, a sign of her personal donation.

The two emperors appear smaller than the Virgin, but their proximity to the central figure emphasizes their sacredness and their role as intermediaries between God and the people.

The style is refined but more rigid than in the Deësis mosaic: the faces are idealized, the expressions less human, but the decorative richness of the robes and golden details keeps the artistic quality very high.

The context is important: John II reigned during a period of imperial reorganization, and the mosaic visually reaffirms the legitimacy of his power and dynastic unity with his foreign-born wife. A union that symbolizes stability and devotion.

This mosaic is ideally placed in dialogue with the one next door: two imperial couples, two different centuries, but a common message: the throne of Constantinople is sacred.

It is a work you can see up close and retains much of its original colors and details. Despite the centuries and transformations of the building, it endures with great visual strength.

The mosaic in the southwest vestibule with Justinian and Constantine

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Just before you enter the main nave of Hagia Sophia, in the southwest vestibule, you are greeted by an imposing mosaic that is so rich in meaning: the Virgin holding the Child, flanked by two legendary emperors-Constantine the Great and Justinian I.
A powerful image that sums up fifteen centuries of imperial faith, power and propaganda.

The mosaic dates from the 10th century, a time of strong artistic and theological revitalization after iconoclasm. It is located in a lunette above the entrance that leads into the former narthex. It was a strategic point: Byzantine emperors passed through there during religious ceremonies.

The scene is solemn and perfectly symmetrical.

• In the center is the Virgin Mary, seated on a sumptuous, backless throne, with the Child Jesus on her lap.
• On the left, Emperor Constantine, holding out a model of the city of Constantinople: he is the founder, the one who transformed Byzantium into the new Rome.
• On the right, Justinian, holding a miniature of Hagia Sophia itself: he is the architect of the present building, consecrated in 537.

The names of the emperors are clearly inscribed next to the figures, in golden Greek letters. The message is crystal clear: the city and the church are offered to the Virgin, patroness of Constantinople. It is a true visual manifesto of the link between imperial power and divine protection.

The style is elegant, with golden auras, richly detailed robes, and solemn proportions. The arrangement of the figures is not only decorative: it also served to remind those entering that the building was sacred, protected, and founded by imperial will.

This mosaic is not a mere embellishment: it is a lesson in Byzantine imperial history condensed into one scene.

Today it is prominently displayed and accessible to all visitors, even before entering the main body of the building. It is worth lingering carefully, not least because the lights in the vestibule enhance it very well.

Other minor mosaics and curiosities

Hagia Sophia is a complex visual universe.

In addition to the most famous and visible mosaics, there are many lesser-known works that enrich the building with precious details and fascinating stories.

Some are fragmentary, others covered, but all contribute to the narrative of a living, layered, and ever-changing architecture.

Seraphim in the spandrels of the dome

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Under the great dome of Hagia Sophia, there where the structure rises to the sky, are four gigantic triangular plumes. And it is there, almost supporting the heavenly throne, that we find one of the most evocative decorations of the entire building: the Seraphim.

These six-winged angels, called seraphim (from the Hebrew word “seraphim,” “burning”), are creatures of heaven who in the Christian tradition surround God’s throne and proclaim His holiness. They are not mere decorative figures: they symbolize the constant, watchful, eternal divine presence.

The Seraphim you see today have a complex and layered history.

• The two Seraphim on the eastern spandrels are Byzantine originals, made in mosaic around 1347, during the reconstruction of the eastern archway ordered by Anna Paleologina after an earthquake.
• The two on the western spandrels, on the other hand, were destroyed or heavily damaged and were replaced by frescoes at later times, probably after the 1894 earthquake.

During the Ottoman period, these angels were covered with star-shaped metal plaques, in line with the Islamic ban on depicting living beings in places of worship. The stars were elegant and dramatic, but they completely obliterated the angels’ faces.

Only in 2009, during a major restoration, were the faces finally uncovered, bringing back the ancient beauty of the Seraphim in mosaic. It was one of the most exciting discoveries in recent decades, welcomed with enthusiasm by art historians and visitors alike.

The Seraphim are not just angels: they are divine sentinels, symbols of the sacredness of the dome, a bridge between earth and heaven. Located between the nave and the great vault, they help give meaning to the entire architecture of Hagia Sophia: a space that is not only physical, but also spiritual.

From an artistic point of view, they are remarkable for the precision of the wing design, the skillful use of gold and cool tones, and the balance between monumentality and detail.

Today, the two mosaic Seraphim are perfectly visible from the nave. They are among the few surviving relics from the late Byzantine period still accessible to the public.

Gable mosaics: saints and patriarchs

Within the vast architecture of Hagia Sophia, the tympanums-those large triangular surfaces that join the base of the dome to the vertical walls-were originally richly decorated with rows of sacred figures.

These were Church fathers, patriarchs, prophets, arranged on several levels to create a visual hierarchy consistent with Byzantine theology.

Sources tell us that there were originally fourteen portraits of Church fathers, equally distributed between the two main gables.

Among the identifiable names are figures of enormous prominence in Eastern spirituality such as Ignatius the Younger, John Chrysostom, Athanasius, and Ignatius Theophorus.

Also appearing alongside them were Old Testament prophets such as Isaiah, Ezekiel, Daniel, and Jeremiah, who were joined by numerous minor prophets arranged among the structure’s openings and windows.

The entire decorative cycle was intended to reinforce the message of continuity between the Old and New Testaments, creating a visual narrative of salvation and spiritual authority.

It was as if all sacred history flowed toward the heart of the church: the altar, the dome, the light.

Over time, however, much of these mosaics have been lost or hidden.

During the major restoration conducted by the Fossati brothers in the 19th century, many of the gable mosaics were rediscovered, catalogued, and unfortunately later covered again in an attempt (considered correct at the time) to protect them. The techniques used, however, proved harmful: the use of plaster and oil paint caused moisture seepage and progressive deterioration.

Today, only four original portraits remain, all in the northern gable, but thanks to drawings made by the Fossati and modern survey techniques, it is possible to ideally reconstruct the original appearance of this decorative cycle.

These mosaics, often overlooked in comparison to the large apsidal or imperial scenes, are actually one of the most valuable testimonies to Byzantine liturgy and worldview.

And precisely because they are less visible, they still have much to tell.

the Ottoman Tughra

Among the mosaic wonders of Hagia Sophia, there is one that stands out for its originality and break with Byzantine iconographic tradition.

It is the Tughra of Sultan Abdulmecid I, a unique work that combines Islamic art and Byzantine technique in a way that is as unexpected as it is fascinating.

This tughra-the official monogram of the Ottoman sultan, used as the royal signature-is located on the right wall of the main door of the narthex, in a strategic position, clearly visible to those entering the building.

But what makes it extraordinary is the technique with which it was made: it is not a fresco or calligraphy on marble, but a real mosaic, executed with gilded and colored tiles, according to traditional Byzantine canons. It is as if the art of the empire that built Hagia Sophia has been reused to celebrate the new Muslim authority.

The mosaic was made during the restoration of Hagia Sophia between 1847 and 1849, under the direction of Swiss architects Gaspare and Giuseppe Fossati.

It was they who wanted to leave a mark of their work, and they did so in a respectful but symbolically very strong way: by transforming the ancient Byzantine technique into a tribute to the reigning sultan.

The result is a stunning mosaic in finish and color harmony.

The monogram is set against a gold background, with green tiles forming the Arabic characters. Around it, a deep blue mosaic frame defines the contours and enriches the visual impact.

Itwas executed by N. Lanzoni, an Italian artist active in Istanbul at the time, who collaborated with the Fossati family.

This tughra is now a perfect symbol of Hagia Sophia’s hybrid identity.

A building that has hosted Orthodox rites, Islamic prayers, and secular visitors, it chronicles centuries of intertwined power and spirituality.

Although it is one of the least visited parts, it is definitely worth seeking out, if only to take a closer look at how two seemingly distant artistic and religious worlds could come together in a perfectly integrated mosaic in context.

Documented but lost mosaics

Not all the mosaics of Hagia Sophia are still visible.

Some have been lost over time, others are hidden under plasters, while still others are known only through drawings and historical descriptions.

This is where the extraordinary work of two 19th-century Swiss architects, Gaspare and Giuseppe Fossati, comes in.

During the major restoration commissioned by Sultan Abdul Mejid I between 1847 and 1849, the Fossati’s had access to much of the interior decoration of Hagia Sophia, by then partially covered or damaged.

With great care, they made sketches, watercolors and detailed reliefs of mosaics that, until then, had remained invisible for centuries.

Thanks to these documents, today we know of the existence of mosaics that are no longer observable in the building.

Some of them have disappeared altogether, others are covered by layers of paint or plaster, applied in later decades, when the building was used as a mosque and the figurative images were removed or concealed for religious reasons.

Among the missing mosaics, it is speculated that there were:

• Liturgical and Christological scenes, possibly in the eastern archway area
• Portraits of patriarchs and bishops in the niches of the aisles
• A depiction of Etimasia, the “empty throne” prepared for Christ’s return, possibly located in the east archway, rebuilt in the 14th century by Anna Paleologina, mother of Emperor John V

It is precisely this 14th-century intervention, conducted at a time of great political and religious crisis, that is one of the most emblematic examples of “programmed” art: mosaics were not just decorations, but real instruments of imperial propaganda, which served to reaffirm the power of the dynasty even in times of instability.

Today, Fossati’s drawings are one of the main iconographic sources for reconstructing the original appearance of the Byzantine Hagia Sophia. Some are preserved in archives and museums, and are used by scholars for comparison and analysis.

Their testimony reminds us that Hagia Sophia is much more than what can be seen with the naked eye.

It is a visual palimpsest, made up of layers of history, erasures and revelations, and each lost mosaic is a silenced but not forgotten voice.

How and when to visit the mosaics

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Visiting the mosaics of Hagia Sophia today is no longer an identical experience as it was a few years ago.

Since July 2020, when the former museum was converted into a mosque, access to the mosaics has changed.

But with the right information, you can still admire most of these Byzantine masterpieces.

Admission and hours

Admission to the Hagia Sophia Mosque is free, but tourist access is limited to certain times, outside Islamic prayer times.
Mosaics can be found in different parts of the building, some in the central nave, others in the upper galleries, accessible by side stairs.

Remember that areas reserved for prayer are closed to tourists during liturgical times, so it is essential to plan your visit in advance, especially if you want to see mosaics located near the altar or dome.

See the times in our dedicated article.

The question of tarps

One of the most discussed changes after the conversion concerns precisely the visibility of the mosaics.

Out of respect for Islamic worship, during prayer the figurative mosaics are covered with cloths or sliding curtains.

At present, many of these are not yet automated, so they can remain darkened for long periods of the day.

The good news is that Turkish authorities have confirmed that the coverage will only be temporary: work is underway to install mobile systems that will allow the mosaics to be uncovered between prayers, thus enabling shared enjoyment among worshippers and tourists.

What you can see today

Currently, they remain clearly visible and accessible:

• The southwest vestibule mosaic with Justinian and Constantine;
• The Ottoman Tughra, near the entrance;
• The Seraphim in the spandrels of the dome, at least in part;
• The mosaics in the south gallery (such as the Deësis, Zoe, John II), usually accessible via a separate ticketed entrance.

Other mosaics, such as those in the apsidal basin or Christ Pantocrator in the dome, may be covered during worship hours, but are glimpsed or partially visible at off-peak times or at specific angles.

Dress code and rules of conduct

Hagia Sophia is now an active mosque, so respectful attire is required to gain access:

• Men: no short shorts or tank tops.
• Women: must cover hair, shoulders and legs; a free headscarf is available on site.
  It is also required to remove shoes before entering the prayer area.

Want to learn more? We have written a dedicated article on the dress code of Hagia Sofia!

Photographs are generally allowed, but it is good to avoid flashes and invasive behavior, especially if religious services are in progress.

Conclusion

Hagia Sophia is a living monument. It is not just a museum, a church or a mosque: it is a crossroads of religions, cultures, ideologies and power. And its mosaics – those visible and those hidden – are its silent but powerful voice.

From 537 to the present, this building has gone through empires, revolutions, restorations and reconversions.

It has been the cathedral of the Byzantine Empire, then a symbol of the Ottoman conquest, and in the twentieth century an icon of secular and modern Turkey.

Today, back as a mosque, Hagia Sophia is still at the center of a dialogue between past and present, between devotion and heritage.

Mosaics, in this setting, represent the visual memory of humanity. They are not only works of art: they are witnesses to the faith, politics and creativity of entire civilizations. Their protection, whether it is restoration, preservation, or simple visibility, does not only concern Istanbul, but all of us.

The future of the mosaics of Hagia Sophia will depend on finding a balance: between the religious function of the building and its historical and cultural importance.

Authorities have promised reversible roofing systems, regulated access, and tourist routes that respect liturgical moments. It is a start, but it will take sustained attention and political will to ensure that this heritage is not forgotten or obscured.

In the meantime, as visitors and enthusiasts, we can do our part: to know, respect and tell the story of these masterpieces.

Because every golden tile, every saint’s face, every emperor’s throne shining in the darkness of Hagia Sophia is a fragment of our common history.

If you want to find out how to see these treasures live, don’t forget to visit our page dedicated to tickets to Hagia Sophia, where you will find all the latest information on admission, hours, and accessibility to the mosaics.