Churches of Istanbul: A Look Into Istanbul’s Most Stunning Churches

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Hagia Sophia

Istanbul is a city with a rich history and culture, and its numerous churches are a testament to its diverse past. These churches, with their stunning architecture and intricate designs, provide a glimpse into Istanbul’s fascinating past.

In this article, we will explore some of the most impressive and historically significant churches in Istanbul, and deep dive into their stories.

The Hagia Sophia: A Wonder of Byzantine Architecture

Inside of the Hagia Sophia Mosque, At the top you can see the Church Mosaics Covered for Prayer Hours

Inside Hagia Sophia

The Hagia Sophia, also known as Ayasofya, is arguably Istanbul’s most famous Mosque. But this stunning structure was built in the 6th century during the Byzantine Empire and was originally intended to be a Christian church.

Originally built as a Christian church in the 6th century, it served as the center of the Eastern Orthodox Church for nearly a millennium. After the Ottoman Empire conquered Istanbul in the 15th century, Hagia Sophia was converted into a mosque, with minarets added to the structure.

In 1935, Turkey’s first president, Mustafa Kemal Atatürk, transformed Hagia Sophia into a museum in an effort to secularize the country. This decision was widely praised by many, as it allowed people of all backgrounds and religions to appreciate the beauty of this historic site.

However, in 2020, the Turkish government decided to convert Hagia Sophia back into a mosque, sparking international controversy. The move was seen by many as an affront to Turkey’s secular traditions and a blow to interfaith harmony. Despite widespread opposition, the government proceeded with its plans, and Hagia Sophia once again became a mosque.

Today, Hagia Sophia remains one of Istanbul’s most visited attractions, drawing millions of tourists each year. The building’s architecture is a stunning example of Byzantine and Ottoman design, with intricate mosaics and frescoes adorning the walls and ceilings. Its long and complex history as a church, mosque, and museum serves as a testament to the power of architecture and the enduring legacy of religion and culture.


I highly recommend visiting four of Istanbul’s most iconic attractions, namely Hagia Sophia, Blue Mosque, Basilica Cistern, and Topkapi Palace in one day. These locations are situated close to each other, making it possible to visit them all within a day.

Hagia Irene in the first courtyard Topkapi Palace

Hagia Irene

Hagia Irene is important to mention here because it is in the first courtyard of the Topkapi Palace. It is the oldest known church in Istanbul and the only Byzantine church in Istanbul that has not been converted into a mosque, as it was used as an arsenal for storing weapons until the 19th century. The Hagia Irene today operates as a museum and concert hall.

Hagia Irene, located in Istanbul, Turkey, is a magnificent Byzantine church with a rich history. Built-in the 6th century during the reign of Emperor Justinian I, it served as the first church of the Byzantine Empire. Throughout the centuries, Hagia Irene was used for various purposes, including as a weapon depot during the Ottoman Empire, as a military museum, and as a concert venue today.

Despite its many uses, the original structure remains remarkably preserved, displaying a combination of Roman and Byzantine architectural styles. Its intricate mosaics and stunning acoustics continue to awe visitors from all over the world, making it a must-visit attraction in Istanbul.

You can buy the Skip the Line Ticket with Guided Tour for Topkapi Palace and Visit the Hagia Irene with it as well.

Hagia Sophia and Blue Mosque are functioning mosques, so they do not have specific opening hours. It is advisable to visit these two locations early in the day to avoid crowds and to ensure ample time to explore and appreciate their beauty.

The Basilica Cistern and Topkapi Palace have set opening hours, and you can plan your visit accordingly after exploring the two mosques. Starting your day early will allow you enough time to visit Grand Bazaar and Süleymaniye Mosque, which are also well worth seeing.

By visiting all these sites in a day, you will have the opportunity to experience the grandeur of Istanbul’s rich history and diverse culture. Each of these attractions offers a unique insight into the city’s past, and they are sure to leave a lasting impression on anyone who visits them.

Private Guided Tours

I highly recommend taking a daily tour if you’re short on time in Istanbul. Tour guides know the best routes to take so you won’t waste time trying to figure out where to go. They also know the good restaurants and places to buy souvenirs.

Additionally, daily tours usually offer a skip-the-line pass, saving you precious time. With a tour guide, you can ask questions about the places you visit and learn interesting facts about the buildings. Booking your guide through the Viator Affiliate link below also helps me earn a little bit on the side. Thank you very much for your generosity!

The Chora Church: A Hidden Gem

The Chora Church is a great place to visit

The Chora Church

Chora Church, also known as Kariye Museum, is a stunning Byzantine church located in Istanbul, Turkey. The church was originally built in the 5th century, but it was later rebuilt and expanded during the 11th and 12th centuries. The interior of the church is adorned with some of the most remarkable examples of Byzantine art and architecture, including frescoes and mosaics that date back to the 14th century.

One of the most significant features of the Chora Church is its impressive mosaics, which depict scenes from the life of Christ and the Virgin Mary. These mosaics are notable for their intricate detail and vibrant colors, and they are considered to be some of the finest examples of Byzantine art in existence.

In addition to the mosaics, the church is also decorated with elaborate frescoes, which cover the walls and ceiling of the nave and the apse. These frescoes feature scenes from the lives of various saints, as well as depictions of angels and other biblical figures. Over the years, the Chora Church has undergone numerous renovations and restorations, but it still stands as a testament to the beauty and ingenuity of Byzantine art and architecture.

Today, Like Hagia Sophia, the Chora Church is also in the phase of being turned into a mosque. Therefore the Church is temporarily closed.

The Church of St. Anthony of Padua: A Piece of Italy in Istanbul

The Church of St Anthony has a great location

The Church of St Anthony

The Church of St. Anthony of Padua, located in Istanbul’s bustling Beyoğlu district, is a Catholic church that dates back to the 18th century. It is one of the few remaining Catholic churches in Istanbul, which was once a thriving center of Christianity in the Byzantine era.

The church’s stunning baroque architecture and ornate interior decorations, including frescoes and marble altars, make it a popular destination for tourists and locals. It is known for its impressive acoustics and frequently hosts classical music concerts and other cultural events.

This church is one of the best-preserved churches in Istanbul and is easily accessible at Istiklal Street. You can visit it without hesitation. Whenever I visit Istiklal Street, I always make sure to stop by the Taksim Mosque and this church to see if there are any new developments. You can combine your shopping trip with a little bit of culture.

The Church of St. Anthony of Padua has played an important role in Istanbul’s multi-faith history, serving as a symbol of interfaith harmony and coexistence. Today, The Church of St. Anthony of Padua is an important pilgrimage site for Catholics in Istanbul and is also a popular wedding venue. It also attracts visitors from all over the world who come to admire its beauty and learn about its history.

The Church of St. Mary of Blachernae: A Holy Site

The Church of St. Mary of Blachernae

The Church of St. Mary of Blachernae

The Church of St. Mary of Blachernae is an ancient church located in the Fatih district of Istanbul. It was built in the 5th century and is one of the oldest churches in Istanbul. It is said to have been built over a spring where the Virgin Mary appeared to a group of Christians.

The Church of St. Mary of Blachernae is important in Orthodox Christianity and is visited by thousands of pilgrims every year. The modest architecture and religious significance make it a must-visit for anyone interested in Istanbul’s religious heritage.

The Church of St. George: A Greek Orthodox Landmark

St. George's Cathedral in Istanbul

St. George’s Cathedral

The Church of St. George in Istanbul has a long history dating back to the Byzantine era. The church has undergone many reconstructions over the years, including one in 1797 that largely remains the same today.

The interior has a spacious design with three aisles separated by colonnades, leaving ample space for the performance of the liturgy. The church has been damaged by fires multiple times and underwent major renovations in the 19th and 20th centuries.

It is home to precious relics and objects, including the patriarchal throne believed to date back to the 5th century, mosaic icons, and relics of important saints.

Today, the Church of St. George is a popular tourist attraction in Istanbul and is known for its beautiful architecture and religious significance. The church features stunning frescoes and mosaics that depict scenes from the life of St. George and other important figures in Christianity.

The Church of St. Mary of the Mongols: A Unique Blend of Cultures

Fener Greek Orthodox College

Fener Greek Orthodox College

This church can be found in the neighborhood of Fener, within the Fatih district. Positioned on Tevkii Cafer Mektebi Sokak, it rests atop a hill that offers stunning views of the Golden Horn, and is located near the grand structure of the Fener Greek Orthodox College. The Fener Greek Orthodox College is a beautiful building in Istanbul and functions as a high school.

Many visitors mistake it for the church, which is located nearby. However, the college is not open to the public. The church is concealed by a tall wall, and all of its doors are typically shut. Nonetheless, the church is accessible to the public, but visitors must ring the doorbell by the entrance to gain entry.

Fener Greek Orthodox College entrance

Church Entrance

The Church of St. Mary of the Mongols is a unique blend of Byzantine and Mongolian architecture. It was built in the 13th century by a Mongolian princess who had converted to Christianity. The church is known for its stunning frescoes and intricate designs, which depict scenes from the life of Christ and the Virgin Mary.

In the 7th century, Princess Sopatra and her friend Eustolia built a nunnery in Constantinople. Over time, the monastery was added and dedicated to All Saints. During the Fourth Crusade, the monastery disappeared but was later rebuilt by Isaac Doukas in the 13th century.

Maria Palaiologina, daughter of Emperor Michael VIII, rebuilt the nunnery and the church in the 13th century. The church was abandoned after the fall of the Empire but saw the last resistance against invading Ottomans in 1453. Mehmed II granted ownership of the church to the Greek community and the church was saved from becoming a mosque.

Despite being damaged by fires and the 1955 Istanbul Pogrom, the church has been restored. Today, it is known as the Church of the Blood and remains a parish of the Greek community. It is one of the only remaining Byzantine churches of Constantinople that has never been converted to a mosque, always remaining open to the Greek Orthodox Church.

The Church of St. Stephen of the Bulgars: A Bulgarian Cultural Center

St.Stephen Church (You can see Fener Greek Orthodox College on the top left side)

St.Stephen Church (You can see Fener Greek Orthodox College on the top left side)

The Church of St. Stephen of the Bulgars (also known as Iron Church) is a Bulgarian Orthodox church located in the Balat district of Istanbul. It was built in the 19th century and is known for its stunning frescoes and intricate designs.

The Bulgarian Orthodox Christians used to pray at the churches of the Phanar Orthodox Patriarchate during the Ottoman Empire, but the Bulgarian nationalist movement of the 19th century wanted a separate Bulgarian ecclesiastical organization. In 1870, the Ottoman sultan Abdülaziz recognized the Bulgarian Exarchate.

The Bulgarian St. Stephen Church is a three-domed cross-shaped basilica with a 40m-high belfry. The original wooden church was built in memory of Stefan Bogoridi and was reorganized into a wooden church in 1849. After a fire, the larger current building was constructed in 1898 by an Ottoman Armenian architect.

An Austrian company produced the prefabricated cast iron parts, and the church was completed after 1.5 years. It combines Neo-Byzantine and Neo-Baroque architectural styles. On December 27, 2010, a celebratory Mass was held in honor of St. Stephen’s feast day. The church underwent a renovation in 2011 and was inaugurated by the Turkish President and Bulgarian Prime Minister in 2018.

The Church of St. Gregory the Illuminator: An Armenian Heritage Site

The Church of St. Gregory in Galata

The Church of St. Gregory in Galata

The Church of St. Gregory the Illuminator is an Armenian Orthodox church located in the Kumkapı district of Istanbul. It was built in the 18th century and is known for its stunning frescoes and intricate designs.

The church is an important heritage site for Armenians in Istanbul. The Church of St. Gregory the Illuminator is an important religious site for Armenian Orthodox Christians and is visited by many pilgrims every year.

Its stunning architecture and cultural significance make it a must-visit for anyone interested in Istanbul’s religious and cultural heritage.


Before visiting churches in Istanbul, it is important to understand and respect the cultural and religious significance of these sites. Dress modestly and conservatively, covering your shoulders and legs, especially for women.

Silence your phone and avoid loud conversations or disruptions. Some of the churches, such as Hagia Irene, are historic sites that require tickets and may have restrictions on photography. Visitors should also be aware of the prayer times and avoid entering the church during services.

Overall, being respectful and mindful of the cultural and religious practices associated with these churches will enhance your experience and demonstrate appreciation for the history and significance of these sacred spaces.

Istanbul’s churches are a testament to the city’s rich history and cultural diversity. From the stunning Hagia Sophia to the lesser-known Chora Church, each church offers a unique glimpse into Istanbul’s fascinating past.

Whether you are interested in Byzantine, Orthodox, Catholic, or Armenian heritage, Istanbul’s churches have something to offer for everyone.


Can non-Christians visit Istanbul’s churches?

Yes, most of Istanbul’s churches are open to visitors of all faiths.

Are there any dress codes for visiting Istanbul’s churches?

Yes, visitors are expected to dress modestly when visiting Istanbul’s churches

Are there any entrance fees to visit Istanbul’s churches?

Some churches may require an entrance fee, but most are free to enter.

Can visitors take photographs inside Istanbul’s churches?

It depends on the church, but most churches allow photography without flash. However, some may have restrictions on photography during religious services or ceremonies.

Is there a specific time of day or day of the week when it’s best to visit Istanbul’s churches?

It’s best to check the opening hours and schedules of the churches you plan to visit beforehand, as they may vary. However, weekdays are usually less crowded than weekends, and early mornings or late afternoons are often quieter times to visit.


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