Tetris is great on Gameboy, PC, consoles and smartphones, but did you know you can also play Tetris on the side of 29-storey skyscrapers?
Well, not every 29-storey skyscraper can play Tetris, but Drexel University professor Frank Lee managed to get it working on the side of Philadelphia's Cira Centre tower.
Check it out below:
The same professor played Pong on the Cira Centre last year. What a charmed life.