Bricklayers in Teralba, New South Wales, Australia, capped a wall with perfectly-laid bricks, using a domino fall. I understand the first fall, although I couldn't understand why they did it. Then the second fall comes back around, and whoa! How did they do that? On Twitter, @neconocc gave us a graphic that helps to make it clear.
It's pretty darn cool to watch, but I don't see any advantage over laying bricks the old-fashioned way. Still, if the purpose was to make a viral video, they did well. -via Metafilter