Red Fort, also called Lal Qalʿah, also spelled Lal Kila or Lal Qila, Mughal fort in Delhi, India. it had been built by Shah Jahān within the mid-17th century and remains a serious tourist attraction. The fort was designated a UNESCO World Heritage site in 2007.
The fort’s massive red sandstone walls, which stand 75 feet (23 meters) high, enclose a posh of palaces and entertainment halls, projecting balconies, baths and indoor canals, and geometrical gardens, also as an ornate mosque. Among the foremost famous structures of the complex is the Hall of Public Audience (Diwan-i-Am), which has 60 red sandstone pillars supporting a flat roof, and therefore the Hall of personal Audience (Diwan-i-Khas), which is smaller, with a pavilion of white marble.
An earlier red fort had been inbuilt in Delhi within the 11th century by the Tomara king Anangapala. The Quṭb Mosque now stands on the location.