Dalden Tower
United Kingdom
The 186th tallest tower in the world
Dalden Tower or Dawden Tower was a manor house and later a pele tower in the village of Dalton-le-Dale, County Durham. Only ruins survive today. The site has been a scheduled monument since 1968, and grade II* listed building since 1950.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).