Once upon a time, people would take spray cans and paint graffiti on walls.
Now, they turn them into animations, or at least that's how this one was done. It's moving art on random walls and it's the ultimate in quirky. Really, I don't know how else it could be described other than amazing....and a little bit creepy, lol. I watched it without sound the first time, but it's much better to have your volume up for the sound effects.