Broch of Mousa
United Kingdom
The 186th tallest tower in the world
Broch of Mousa (or Mousa Broch) is a preserved Iron Age broch or round tower. It is on the island of Mousa in Shetland, Scotland. It is the tallest broch still standing and amongst the best-preserved prehistoric buildings in Europe. It is thought to have been constructed c. 300 BC, and is one of more than 500 brochs built in Scotland. The site is managed by Historic Environment Scotland as a scheduled monument.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).