Image of the ancient Qutb Minar at New Delhi, India. This is a UNESCO World Heritage site. The Qutub Minar is the world's tallest brick minaret tower with a height of 72.5 meters (237.8 ft). Construction commenced by Qutb-ud-din Aibak who won Delhi from the Prithviraj under Muhammad of Ghor as his commander in chief, and finished by Iltutmish, The Qutub Minar is notable for being one of the earliest and most prominent examples of Indo-Islamic architecture. It is surrounded by several other ancient and medieval structures and ruins, collectively known as Qutub complex.