Watchtower of Venturada
Spain
The 186th tallest tower in the world
The Watchtower of Venturada (Atalaya de Venturada) is a watchtower located in Venturada, Spain. It was declared a National Historic-Artistic Monument by Royal Decree in 1983 and under Law 16/1985 on Spanish Historical Heritage, it was subsequently recognized as a Bien de Interés Cultural. The tower, built atop a rock outcrop, is 9.2 m tall, 5.7 m in diameter and the walls are 1.34m thick.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).