The Red Fort is a historic fort in the old city of Delhi. Shah Jahan built it in 1639 as part of the transfer of the capital from Agra to Delhi. Formerly known as Quila-e-Mubarak or Blessed Fort, the Red Fort is situated on the banks of the river Yamuna, whose waters fed the moats around the fort. It was part of the medieval city of Shahjahanabad, now popularly known as ‘Old Delhi’. The entire fort complex is said to represent the architectural creativity and brilliance of Mughal architecture. The Red Fort is one of India’s most popular monuments and a major tourist attraction in Delhi as it is associated with so much history and heritage. In 2007, it was designated a World Heritage Site by UNESCO.