Siri Fort Sports Complex

Ruined fort of Alauddin Khalji, built to defend the city from the onslaught of the Mongols.

It is a minaret built by Alauddin Khilji in the 13th century. Here the decapitated heads of chors, or thieves, were displayed through its 225 holes.

Lal Gumbad is the tomb of Shaikh Kabir–ud-Din-Auliya who was buried here in 1397. It is one of the earliest examples of architecture in Delhi, built during Mohammad bin Tughlaq's rule. Little is known about the saint, except that he lived during Tughlaq rule. It is made up of Red Sandstone from which it gets its name.

The complex houses two tombs of different sizes. The larger one is known as the tomb of dadi (grandmother) and the smaller one is the tomb of poti (granddaughter). Sadly nothing is known about the famous grandmother and granddaughter duo. The bigger tomb, which seems three storied from the outside, is actually a single-story tomb housing several graves. According to architectural evidence, it belongs to the Tughlaq period (1321–1414). The smaller tombs have sloping walls and the dome is crowned with a lantern. Architectural evidence shows it to be of the Lodi period (1451–1526).

Bara Khamba, literally means twelve pillars. It is a domed structure supported by 12 pillars. Although this building is a tomb, no cenotaphs remain inside it but you can still see a number of gravestones outside the Barakhamba. The building probably belongs to the Lodi period (1451–1526). There are a few other scattered structures in the compound.

Literally meaning "doomed building of brother", the mausoleum has arched niches which are neatly arranged. It was built during the Lodi rule.