We're sure you've heard things described as "the coolest video ever" a lot, but this one might really be it!
Domino artist Lily Hevesh makes these insanely complicated structures and then watches them fall apart. Maybe when you were a kid you spent time setting up a huge chain of dominoes, but we bet you never even dreamed up something this complicated.
Her most ambitious creation, the "Triple Spiral," shows that dominoes aren't just kids games, they're crazy cool works of art. This structure took 25 hours over eight days to set up - and of course it only takes a few minutes for everything to fall down!
Did you love playing with dominoes as a kid? Share this video with someone to blow their mind!