Aircraft Warning Service Observation Tower
United States
The 186th tallest tower in the world
The Aircraft Warning Service Observation Tower in Agnew, Washington was built in 1941 as a spotting station for Aircraft Warning Service volunteers watching for intruding Japanese airplanes during World War II. The tower's original site was near Dungeness, but in 1992 the tower was moved to its present location.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).