Tower of Apollonia
Greece
The 186th tallest tower in the world
The Tower of Apollonia or Tower of Eleftheres stands on the coastal hill 27 kilometres (17 mi) east of the Strymon River estuary in the Thracian Sea. The small settlement of Pyrgos, some 700 m northeast of the tower, is named after it.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).