Domino experts Hevesh5 and Millionendollarboy worked three months to set up this insane domino array. The beauty of this fall is not in the number of dominos -there are about 25,000- but in the complicated and beautiful things they do along the way. There are Rube Goldberg-style elements featuring wheels, swivels, walls, hinges, and other tricks. See extra footage of fails and bloopers in an additional video. -via Viral Viral Videos