This mosque was built by Sultan Ahmet I during 1609-1616 in the square carrying his name in İstanbul. The architect is Sedefhar Mehmet Ağa. It is the only mosque in Turkey with six minarets. The mosque is 64 x 72 m in dimensions. The central dome is 43 m in height and is 33.4 m in diameter. 260 windows surround the mosque. Due to its beautiful blue, green and white tilings it has been named the "Blue Mosque" by Europeans. The inscriptions were made by Seyyid Kasım Gubari.
Many places of tourist interest are concentrated in Sultanahmet, in heart of the Imperial Centre of the Ottoman Empire. The most important places in this area, all of which are described in detail in the "Places of Interest" section, are Topkapı Palace, Aya Sofya, Sultanahmet Mosgue (the Blue Mosque), the Hippodrome, Kapalı Carşı (Grand Bazaar), Yerebatan Sarnıcı and the Museum of Islamic Art.
In addition to this wonderful selection of historical and architectural sites, Sultanahmet also has a large concentration of carpet and souvenir shops, hotels and guesthouses, cafes, bars and restaurants, and travel agents.