Tourism in Turkey important tourism spots not only in Turkey but also in the world. There are thousands of hotels and other tourist-oriented industries in the city, catering to both vacationers and visiting professionals. Turkey's largest city and metropolis and a leading global city, Istanbul, has a number of major attractions derived from its historical status as capital of the Byzantine and Ottoman Empires. These include the Sultan Ahmed Mosque (the "Blue Mosque"), the Hagia Sophia, the Topkapı Palace, the Basilica Cistern, the Dolmabahçe Palace, the Galata Tower, the Grand Bazaar, the Spice Bazaar, and the Pera Palace Hotel. Istanbul has also recently
Beyoğlu Her room is conserved as a museum. S. Antonio di Padova, the largest Catholic church in Turkey, and the Neve Shalom Synagogue, the largest synagogue in Turkey, are also in Beyoğlu. There are other important Catholic and Orthodox churches in the area, such as the Saint Mary Draperis church or centrally located Hagia Triada Church at the conjunction point between Istiklal Avenue and Taksim Square. It is the seat of the Chaldean Catholic Archeparchy of Diyarbakir. The only Jewish Museum of Turkey, which has been converted from a synagogue, is located in the Karaköy quarter, which was known as Galata