Topkapı Palace is a historical palace located in Istanbul, Turkey. It was the main residence of the Ottoman sultans for approximately 400 years (1465-1856) and served as the center of the Ottoman Empire’s administration.

The palace is located on the Seraglio Point, overlooking the Golden Horn, the Bosphorus and the Sea of Marmara. It is made up of four main courtyards, each with its own unique features and buildings. The first courtyard contains the Imperial Gate, the Second Court is home to the palace kitchens and the third courtyard houses the palace’s most important buildings such as the Audience Hall, the Treasury, the Harem, and the Imperial Council Chamber.

The Harem is one of the palace’s most famous areas, where the sultan’s family and concubines lived. It is a maze of over 400 rooms and apartments, including the famous Courtyard of the Eunuchs and the Black Eunuchs’ Chamber.

The palace’s architecture is a blend of Byzantine, Ottoman, and Islamic styles, with influences from various periods and cultures. The palace also houses a vast collection of artifacts, including weapons, clothing, and artworks from the Ottoman period.

Today, Topkapı Palace is a popular tourist attraction and is open to the public as a museum. It has been designated a UNESCO World Heritage Site since 1985.