Dun Bharabhat, Great Bernera
United Kingdom
The 186th tallest tower in the world
Dun Bharabhat (or Dun Baravat) is an Iron Age galleried dun or "semi-broch" situated on the island of Great Bernera near Lewis in Scotland (grid reference NB15583555).
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).