Khosrogerd Minaret
Iran
The 186th tallest tower in the world
Khosrogerd Minaret is a 12th-century tower located 10 kilometres (6.2 mi) to the west of Sabzevar, Iran, and is all that remains of the Silk Road town of Khosrogerd, destroyed in the Mongol invasion in 1220 AD. It is an example of Seljuk architecture. The minaret was built around 1112 AD (in the 6th century AH) during the Seljuk era, and is almost 30 metres (98 ft) high.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).