The Kiev TV Tower is a 385 m-high lattice steel tower built in 1973 in Kiev, Ukraine, for radio and television broadcasting. It is the tallest freestanding lattice steel construction in the world. Made of steel pipe of various diameters and thicknesses, the structure weighs 2,700 tons. The central pipe, or core, where the elevator is located, is 4 meters in diameter and made of pipe that is 12 mm thick. It sits on a four-legged base that is about 100 meters tall.