The Red Fort (Fort Rouge, Lal Qila) takes its name from the massive red sandstone walls that encircle it. Once the imperial city of successive Mughal dynasties, it served as the center of government, the state treasury and the state mint. Within this sprawling complex are numerous palaces and beautiful mosques and pavilions, dating from the 1600s. The Red Fort combines elements of both Hindu and Islamic architecture, and incorporates decorative imagery of living beings, such as elephants and birds which is forbidden in purely Islamic structures.
The Red Fort is situated in Agra, on the banks of Yamuna River. It is known as Red Fort because it is built of a kind of red sandstone. Within this Fort there lies some of the most exquisite architecture of the Mughal Period; like the Pearl Mosque, Moti Masjid, Diwan-i-Khas, Diwan-i-Am and Jahangiri Mahal. The Red Fort in Agra encompasses a radius of three kilometers and is bordered by a wall, which is 70 foot tall. Two walls made of red sandstone surround the fort. The Red Fort has four gates.