Tower
3 buildings
Eiffel Tower
Stands 1,083 feet tall, was the tallest structure for 41 years. 7,300 tons of iron held to...
CN Tower
Stood as the tallest freestanding structure for 31 years at 1,815 feet. The glass floor ca...
Space Needle
Built for the 1962 Seattle Worlds Fair in under 400 days. Stands 605 feet tall on a tripod...