Subz Burz
South East Delhi district, India
Sabz Burj (lit. 'Green Tower') is an octagonal Mughal-era mausoleum situated at an intersection on Mathura Road, near Nizamuddin complex, west of Humayun's Tomb, Delhi. Constructed in 1530s, it is among the earliest Mughal-era buildings and features rare patterns inspired by Timurid architecture from Central Asia. The identity of its builder and who is buried here is not known. Its ceiling, painted using pure gold and lapis lazuli is considered to be the earliest painted ceiling for any Mughal structure in India with no similar example surviving anywhere else in the world.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).