Topkap? Palace (Topkap? Saray? in Turkish, literally the "Cannongate Palace" - named after a nearby gate), located in Istanbul (Constantinople), was the administrative center of the Ottoman Empire from 1465 to 1853.

The construction of the Topkap? Palace was ordered by Sultan Mehmet II in 1459. It was completed in 1465. The palace is located on the Seraglio Point between the Golden Horn and the Sea of Marmara in Istanbul, having a splendid view of the Bosphorus.