The Sultan Ahmet Mosque, or Blue Mosque, dominates Istanbul's skyline with its towering minarets and magnificent architecture, built in the 17th century to rival the Hagia Sophia. Famous for its 21,000 blue Iznik tiles, the mosque stands near the historic Topkapi Palace, while Istanbul's Bosporus shoreline showcases ancient mosques, palaces, and the iconic suspension bridge connecting Europe and Asia.