Torre delle Milizie
Italy
The 186th tallest tower in the world
The Torre delle Milizie ("Tower of the Militia") is a fortified tower in Rome, Italy, located between Trajan's Market in the Imperial fora to the southwest and the Pontifical University of Saint Thomas Aquinas, or Angelicum, to the east. The tower was the keep of a larger fortified complex known as the Castello delle Milizie, which no longer survives.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).