Delhi is full of medieval tombs, and most of them are fairly predictable when it comes to shape: most of them—probably somewhere around 95%—are domed. One of the rare exceptions, and that too a tomb which is pretty well-maintained, is the Tomb of Mirza Aziz Koka, foster-brother of the Mughal Emperor Akbar. The tomb was built in about 1623-24 CE.
Chaunsath Khamba (’64 pillars’), is so named because its flat roof is held up by 64 pillars. The entire structure—roof, sloping overhang, walls and all surfaces of the large hall inside—are covered in white marble, with a few highlights in red sandstone. Besides the cenotaph of Mirza Aziz Koka himself, there are many other cenotaphs in this pavilion, presumably of his family members (interestingly, the tomb of Mirza Aziz Koka’s father, Atgah Khan, is one of the most beautiful tombs in Nizamuddin Basti—it is just a few metres away, nearer the Dargah of Hazrat Nizamuddin Auliya.
Recent conservation and restoration has been carried out at Chaunsath Khamba to clean it and repair sections. Interesting details of what was done as part of the project are on the signboard just outside the tomb. Entry to the tomb is free.