In the very heart of Istanbul, opposite the majestic Hagia Sophia, stands one of the world`s most recognizable structures — the Sultan Ahmed Mosque, which Europeans call the Blue Mosque. It is not just a temple, but a true symbol of the city, an architectural masterpiece combining the power of the Ottoman Empire, the refinement of Islamic art, and the spiritual depth that attracts millions of visitors annually.
Located in the historic Sultanahmet district, the mosque has been part of the UNESCO World Heritage Site since 1985 and remains an active place of worship, open to both believers and tourists from around the world.
Motives for Building the Sultan Ahmed Mosque
The history of the mosque began during a difficult time for the Ottoman Empire. In 1606, the Treaty of Zsitvatorok was signed, which many contemporaries perceived as humiliating for the empire. Under these circumstances, the young Sultan Ahmed I, who was only 14 years old, made an unprecedented decision — to build a new imperial mosque.
Before him, for almost 50 years, no sultan had erected their own mosques, and tradition required financing such construction exclusively from war booty. Since Ahmed I had not won any major victories, he had to use funds from the state treasury, which caused sharp discontent among religious authorities — the ulema — who even called on Muslims not to pray in the new mosque. Nevertheless, the sultan persevered, and construction began.
Construction and Architect of the Sultan Ahmed Mosque
The construction of the Blue mosque was entrusted to the talented architect Sedefkar Mehmed Agha, a student of the great Mimar Sinan. Construction began in 1609 and was completed in 1617 — shortly before the death of Sultan Ahmed I himself.
The site for the mosque was chosen symbolically — the southeastern part of the ancient Hippodrome, opposite Hagia Sophia, allowing the new structure to dominate the cityscape and rival the greatest temple of the Christian world. Interestingly, during 20th-century excavations in the mosque`s courtyard, ancient seats from the Byzantine Hippodrome were discovered. Clearing the site required demolishing the palaces of several Ottoman dignitaries, including the buildings of Sokollu Mehmed Pasha and Güzel Ahmed Pasha, which required significant expenditure.
The Scandal of Six Minarets
Immediately after construction was completed, the mosque sparked a new scandal — it had six minarets, the same number as the Masjid al-Haram in Mecca. This was considered unforgivable audacity. A solution was found quickly and elegantly: Sultan Ahmed I ordered a seventh minaret to be built at the mosque in Mecca, and the primacy was restored. Thus, the Sultan Ahmed Mosque remained the only one in Turkey with six minarets.
Architectural Appearance of the Sultan Ahmed Mosque
The Sultan Ahmed Mosque represents the pinnacle of classical Ottoman architecture. Its silhouette, formed by a cascade of domes and semi-domes, creates the impression of a single majestic mass, smoothly ascending towards the sky. The main dome reaches 43 meters in height and 23.5 meters in diameter. It rests on four massive pillars, and the surrounding four semi-domes and many smaller domes create a complex and harmonious structure reminiscent of Hagia Sophia`s architecture, but reinterpreted in the Ottoman style.
Architect Mehmed Agha synthesized the ideas of his teacher Sinan, striving for grandeur and magnificence, but gave the structure a more sculptural, detailed character. The external dimensions of the Blue mosque are impressive: the length is 73 meters, and the width is 65 meters.
Courtyard and Ablutions of the Sultan Ahmed Mosque
In front of the prayer hall stretches a spacious inner courtyard, surrounded by arched galleries with 30 small domes. In the center of the courtyard is a traditional hexagonal fountain for ablutions, which, however, is used today more as a decorative element. The courtyard creates an atmosphere of silence and tranquility, allowing visitors to prepare before entering the sacred space.
Interior of the Blue Mosque
The mosque received its European name thanks to its unique interior decoration — over 20,000 handcrafted ceramic tiles from the city of Iznik cover the walls, columns, and arches. The decor is dominated by blue, light blue, and white tones, creating that very unique atmosphere that takes one`s breath away.
The Iznik tiles are decorated with more than 50 different floral motifs. A special place is occupied by images of tulips — the symbol of the Ottoman Empire. Interestingly, the tiles on the lower levels are made in the traditional style, while on the galleries their decoration becomes more lush, with depictions of fruits, cypresses, and flowers. The price of each tile was fixed by sultan`s decree, and over time the quality of some decreased, and the paints partially changed shade. Some tiles on the back balcony wall were moved from the harem of Topkapi Palace, which was damaged in the fire of 1574.
Light and Space in the Sultan Ahmed Mosque
The interior space of the Blue mosque is flooded with soft light entering through 260 windows. Many of them were once adorned with stained glass, which still lets through colored rays, creating a play of light on the blue tiles. During the day, sunlight makes the tiles shimmer, and in the evening, the huge chandelier with many oil lamps adds a warm glow.
Mihrab, Minbar, and Sultan`s Loge
The prayer niche — the mihrab — is carved from a single piece of white marble and richly decorated. Next to it rises the minbar — the pulpit for sermons, also made of skillfully carved marble. In the southeastern corner of the prayer hall is a special sultan`s loge — an elevated platform where the sultan himself could pray without mingling with the crowd. It is accessed by a separate ramp, allowing the ruler to ride directly into the mosque on horseback. The loge rests on ten marble columns and has its own mihrab.
Calligraphy and Carpets
The domes and walls are adorned with skillful calligraphic inscriptions in Arabic — quotations from the Quran, executed with gilding. The floors are covered with soft handmade carpets, traditionally red with blue and cream patterns, which are regularly replaced as they wear out.
The Mosque Complex of the Sultan Ahmed Mosque: Külliye
Like many large imperial mosques, Sultanahmet was the center of a vast religious and charitable complex — a külliye. Initially, it included: a madrasa (Islamic school), an imaret (public kitchen), a hospital, a caravanserai, a primary school, and a market. The hospital and caravanserai have not survived to the present day, but the mausoleum of Sultan Ahmed I is located here, behind the mosque walls, and is open to visitors. The buildings of the madrasa and the market exist today, used for their historical purpose or for tourist trade.
Restorations and Current State of the Sultan Ahmed Mosque
Over its 400-year history, the mosque has been restored many times. Major work was carried out in the 19th century, and also in 2013 when it was discovered that the northwestern minaret had developed a tilt. The most extensive restoration of modern times took place from 2018 to April 2023, during which the mosque was partially closed. Today, it appears before visitors in all its magnificence, continuing to serve as a place of prayer and a major tourist attraction.
Visitor Information for the Sultan Ahmed Mosque
The mosque is open to visitors daily but is closed to tourists during the five daily prayers and especially strictly on Fridays during the midday prayer. It is recommended to check the prayer schedule in advance. Entrance to the mosque is free.
Rules for Visitors
Since the mosque is active, strict rules of etiquette must be observed. Clothing should be modest, covering shoulders and knees. Women are required to cover their heads with scarves, which are provided free of charge at the entrance. Before entering, shoes must be removed, and special bags are provided for carrying them. Inside, you should speak quietly, not use flash photography, and try not to walk in front of those praying. The mosque has three entrances. The main entrance from the Hippodrome side is intended for worshippers; tourists are better off using the side entrances.
The Blue Mosque remains a unique monument in which the architectural traditions of Byzantium and the Ottoman Empire are organically intertwined. Taking the domed structure of Hagia Sophia as a basis, Mehmed Agha created not an imitation but a completely new, original image that became the pinnacle of Ottoman architectural development. Six minarets reaching for the sky, a cascade of domes, and over twenty thousand Iznik tiles — every detail here is thought through to perfection.
