Have you seen what happens when 128,000 dominoes fall? How would you react? "This looks amazing. Had fun cleaning up?" says one YouTube comment. The original video, uploaded by YouTube account Sinners Domino Entertainment, has reached over 2.5 million views since 2012. It never ceases to continually amaze new watchers. "The satisfaction of seeing so much work get toppled, but all so neatly," says another commenter. 

What are some things to notice in the video below? Keep your eyes on the blue dominoes. According to edocpublish, this elaborate setup was completed by 10 people from Sinners Domino Production at Wilhelm-Lückert-Gym in Büdingen, Germany. There were 128,000 dominoes laid out while 127,141 dominoes toppled down.