How are buildings like skyscrapers in the middle of cities demolished without hitting surrounding structures?

Question

How are buildings like skyscrapers in the middle of cities demolished without hitting surrounding structures?

In: 2

Answer 1

Either through a controlled explosion (where you use small amounts of dynamite with precisely controlled triggers, to collapse the building in stages,) or through deconstruction.

270 Park Avenue in Manhattan was a 700 foot tall steel skyscraper, and it was deconstructed a few years ago. They basically surrounded it with scaffolding, and pulled it down in pieces. Here are some pretty tasty photos:

https://newyorkyimby.com/2021/04/270-park-avenues-demolition-wrapping-up-as-new-superstructure-rises-in-midtown-east-manhattan.html