Collapse of Warsaw Radio Mast

Date: August 8, 1991 • Location: Gąbin, Poland

The Warsaw radio mast (pictured), then the tallest structure ever built, at 646.38 metres (2,120.7 ft), collapsed due to an error in exchanging the guys on the highest telecommunications equipment of the mast.

The Warsaw radio mast was a radio mast located near Gąbin, Poland, and was the world's tallest structure at 646.30 m from 1974 until its collapse on 8 August 1991. The mast was designed with extreme height to broadcast Polish state media around the world, including to parts of Canada and the United States, and even reaching Antarctica. The official name of the facility was Radiofoniczny Ośrodek Nadawczy w Konstantynowie, Radiowe Centrum Nadawcze w Konstantynowie or Warszawska Radiostacja Centralna (WRC) w Gąbinie. It broadcast Polskie Radio's Program I.