Tughlaqabad Fort is a ruined fort in Delhi built by Ghiyas-ud-din Tughlaq of the Delhi Sultanate in 1321, which was later abandoned in 1327. Tughlaqabad still consists of remarkable, massive stone fortifications that surround the irregular ground plan of the city. The sloping rubble-filled city walls, a typical feature of monuments of the Tughluq dynasty, are between 10 and 15 meters high, topped by battlemented parapets and strengthened by circular bastions of up to two stories height. The city is supposed to once have had as many as 52 gates of which only 13 remain today. Today most of the city is inaccessible due to dense thorny vegetation. The monument should only be visited with a guide. Timings: 09:00 – 17:00 Hrs.