Get beyond the tourist sites in Istanbul with a full-day, private tour that combines iconic destinations with atmospheric neighborhoods often overlooked by visitors. Explore a historic university and a series of Christian landmarks, old city walls and a Byzantine prison. Soak up the city’s rich history at an Ottoman mosque and the Chora Museum, whose vivid Byzantine mosaics depict early Christianity. See a palace and a 15th-century synagogue gate, Panagia Blachernae Church and a bustling street full of small shops and stalls stocked with local handicrafts and souvenirs.