The Taj Mahal (Crown of the Palace) is an ivory-white marble mausoleum on the right bank of the river Yamuna in Agra, Uttar Pradesh. The Taj Mahal was designated as a UNESCO World Heritage Site in 1983 for being "the jewel of Islamic art in India and one of the universally admired masterpieces of the world's heritage". It is regarded as one of the best examples of Mughal architecture and a symbol of Indian history. Agra Fort is a historical fort in the city of Agra in India. It was the main residence of the emperors of the Mughal Dynasty till 1638, when the capital was shifted from Agra to Delhi. The Agra fort is a UNESCO World Heritage site. 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.