If you're a Tetris fan, you're about the have your mind blown. Below you can watch a version of Tetris that can actually be played on the side of the 29-story Cira Centre building in Philadelphia. The game's makers created this giant-size game using LEDs embedded in the building's glass facade.
Listen to the crowd cheer at :30 when a fat bunch of rows are cleared to that most satisfying bloop-bloop-bloop sound, which roughly translates to, "look what I just did!":