'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.

[3] The current name of the monument refers to the green glazed tiles on the drum, onion dome and finial of the tomb.

[4] The Sabz Burj is often confused with another monument in its vicinity called the Nila Gumbad (lit.

[5] The Lodi dynasty that ruled the Delhi Sultanate was defeated by the forces of Babur in the year 1526 at the First Battle of Panipat, establishing the Mughal Empire on the Indian Subcontinent.

[13][6] The restoration work required the removal of cement plaster layers, terracotta tiles and iron grills, which were all 20th century additions, and these were replaced with glazed quartz tiles (closely matching the ones used in the 16th century) and sandstone jallis.

[12] The restoration ensured that the painted ceiling was visible again after almost 100 years[10] and further damage of the structure from issues like rainwater seepage was arrested.

[2] Its construction has influences of Central Asian architecture, consisting of alternating wide and narrow sides.

The mausoleum marks the first time in the history of medieval Indian art where two features, namely the octagonalised-square plan and the high bulbous dome appeared in perfectly developed state, making this an extremely important building.