The Sultanahmet District is a historic area in Istanbul, Turkey, known for its rich cultural heritage. It is home to several iconic landmarks, including the Hagia Sophia, a former cathedral and mosque, and the Blue Mosque, famous for its stunning blue tiles. The district attracts millions of tourists each year, offering a glimpse into the city's Byzantine and Ottoman past. In addition to its architectural wonders, the Sultanahmet District features the Topkapi Palace, which served as the residence of Ottoman sultans for centuries. Visitors can also explore the Basilica Cistern, an ancient underground water reservoir. The area is a vibrant hub for history and culture.