It will depend on your selected tours itinerary, but most Bosphorus River cruises leaving from Istanbul will show you some of the top highlights of the city, including the Galata Tower, Dolmabahce Palace, Ciragan Palace, Ortaköy Mosque, Maiden Tower, and Beylerbeyi Palace. Cruise under the Bosphorus Bridge, see the Hagia Sofia, and discover the best sights of the city.