- Warszawa Radio mast
- Poland (Konstantynow)
The tallest structure ever destroyed or demolished was the Warszawa Radio Mast in Konstantynow, Poland. When it was completed in 1974, it was the world's tallest man-made structure. It collapsed on 8 August 1991 while a construction crew were exchanging a guy wire. It was 646.38 m (2,120 ft 8 in) tall.