Topkapi Palace is located old city Sultanahmet, Istanbul. which was the official and primary residence in the city of the Ottoman Sultans, from 1465 to 1853. The palace was a setting for state occasions and royal entertainments and is a major tourist attraction today. The name directly translates as "Cannon gate Palace", from the palace being named after a nearby, now destroyed, gate.

Initial construction started in 1459, ordered by Sultan Mehmed II, the conqueror of Byzantine Constantinople. The palace is a complex made up of four main courtyards and many smaller buildings. At the height of its existence as a royal residence, the palace was home to as many as 4,000 people, formerly covering a larger area with a long shoreline. The complex has been expanded over the centuries, with many renovations such as after the 1509 earthquake and 1665 fire.Topkapi Palace is among those monuments belonging to the "Historic Areas of Istanbul", which became a UNESCO World Heritage Site in 1985, and is described in Criterion iv as "the best example of ensembles of palaces of the Ottoman period.

Topkapi Palace gradually lost its importance at the end of the 17th century, as the Sultans preferred to spend more time in their new palaces along the Bosporus. In 1853, Sultan Abdul Mecid I decided to move the court to the newly built Dolmabahçe Palace, the first European-style palace in the city. Some functions, such as the imperial treasury, the library, mosque and mint, were retained though.
After the end of the Ottoman Empire in 1921, Topkapy Palace was transformed by government decree on April 3, 1924 into a museum of the imperial era. The Topkapi Palace Museum is under the administration of the Ministry of Culture and Tourism. The palace complex has hundreds of rooms and chambers, but only the most important are accessible to the public today. The complex is guarded by officials of the ministry as well as armed guards of the Turkish military. The palace is full of examples of Ottoman architecture and also contains large collections of porcelain, robes, weapons, shields, armor, Ottoman miniatures, Islamic calligraphic manuscripts and murals, as well as a display of Ottoman treasure and jewelry.

The palace complex is located on the Seraglio Point (Sarayburnu), a promontory overlooking the Golden Horn and the Sea of Marmara, with the Bosphorus in plain sight from many points of the palace. The site is hilly and one of the highest points close to the sea. During Greek and Byzantine times, the acropolis of the ancient Greek city of Byzantion stood here. There is an underground Byzantine cistern, located in the Second Courtyard, which was used throughout Ottoman times, as well as remains of a small church, the so-called Palace Basilica on the acropolis have also been excavated in modern times. The nearby Church of Hagia Eirene, though located in the First Courtyard, is not considered a part of the old Byzantine acropolis.