A dude called Flippycat thought it would be a good idea to stack 60,000 dominos to make 60 big walls and then hit them to watch them fall. I don't blame him; it's so satisfying watching all that colour fall.
The video took over 65.5 hours to shoot, over the course of eight days. And a distance of 14 feet! It only took 12 seconds to fall, however. [Flippycat via Buzzfeed]