Meta Minutes on Instagram: "A controlled demolition is a safe way to bring down a large building using carefully placed explosives. Engineers plan it so the structure collapses inward instead of falling sideways. For a 21-story skyscraper, experts first remove anything dangerous inside, like fuel or glass, and make sure nearby areas are closed off. Then, small explosives are placed on key support columns throughout the building. When the explosives are set off in the right order, the lower suppo