Qutb Minar or Qutub Minar as it is also pronounced is the 2nd tallest minar in India and stands at 73 Meters High. Built using Redstone and Marble, this great minar has 379 steps and has a diameter of 14.3 meters at base and 2.7 meters at top. Construction of Qutub Minar was started by Qutbuddin Aibak who was the first Muslim Sultan of Delhiin 1193,its second and third floors where completed by his successor, Iltutmish in 1236 and later on the fourth and fifth stories were completed by Firoz Shah Tughlaq in 1368 . This Minar is believed to be constructed for the purpose of performing Adhan from the minaret. The minar is covered with intricate carvings and verses from the Qur’an and comprises of several superposed flanged and cylindrical shafts, separated by balconies supported on Muqarnas corbels. The Qutub Minar is a five stories high tower with each story having its unique design. The structure got damaged several times in the past but was renovated by the king Muhammad-bin-Tughlaq and again by Emperor Firoz Shah Tughlaq. The area around Qutub Minar is surrounded by several other historical structures which visitors can see. Qutub Minar is a UNESCO World Heritage Site and also has been described as the seventh architectural wonder of India.