I saw a huge chimney come down by Fred Dibner when I was a teenager, and it came down similar to the one in the video, albeit quicker. However, I have seen some terrible ones on the internet, especially when they have gone wrong or stopped mid-session.
I did use to work with a girl who was an explosives expert. I think she worked in the explosives section for the mines or quarries in Wales. It was bizarre because I'd never come across anybody who had done anything like that before.