The Qutb complex is an array of monuments and buildings at Mehrauli in Delhi, India, the most famous of which is the Qutub Minar. This complex was first constructed by Qutb-ud-din Aybak, the first ruler of the Slave Dynasty, and his successor Iltutmish (aka Altmash) in his new city called the Qila-Rai-Pithora near Prithivraj Chauhan's older city. The complex was added to by many subsequent rulers, including Iltutmish and Ala ud din Khilji as well as the British.
The most famous monument situated in the complex is the Qutub Minar; other important constructions in the complex are the Quwwat-ul-Islam mosque, the Ala-I-Darwaza, the Alai Minar and the iron pillar. Twenty-seven previous Jain temples were destroyed and their materials reused to construct the minar and other monuments of the complex.