Sheraton İstanbul Ataköy Hotel
Set in a sleek building overlooking the Sea of Marmara, this contemporary hotel is 11 km from both the Ayasofya and the Blue Mosque, and 12 km from Topkapı Palace. Featuring sea views, the polished rooms come with free Wi-Fi, flat-screen TVs, tea and coffeemakers, and minibars. Room service is available 24/7. Amenities include a heated indoor pool, an outdoor pool and a jogging track, plus a tennis court and a fitness center. There's also a trendy lounge, a business center and a casual restaurant, as well as a bakery and a tavern.