Castle of San Andrés
Spain
The 186th tallest tower in the world
The Castle of San Andrés or Tower of San Andrés (Castillo de San Andrés or Torre de San Andrés) is located in the village of San Andrés (Santa Cruz de Tenerife, Canary Islands, Spain). This castle served to protect the island of Tenerife from pirate attacks.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).