Agra Fort, is a monument, a UNESCO World Heritage site located in Agra, Uttar Pradesh, India. It is about 2.5 km northwest of its more famous sister monument, the Taj Mahal. The fort can be more accurately described as a walled city. Agra Fort was originally a brick fort, held by the Hindu Sikarwar Rajputs. It was mentioned for the first time in 1080 AD when a Ghaznavide force captured it. Sikandar Lodi (1488–1517) was the first Sultan of Delhi who shifted to Agra and lived in the fort.