Topkapi Palace#Fatih, Topkapı-Palast, Türkei courtyard in Istanbul. The Palace was the official residence of the Ottoman Sultans for 400 years.
It is a UNESCO World Heritage Site and contains many holy relics of the Muslim world. Construction was begun in 1459, and at its height, the complex housed 4,000 people.
In 1924, a governmental decree transformed the Palace into a museum of the imperial era.