Anyone using Windows 8, Windows 8 RT or Windows Phone 8 knows the cool new Microsoft designed concept of a Live tile. It is a tile that provides active information about the things that are important to you. 

Microsoft created a Live Tile on the floor (middle of the road) that lit up when a person stepped on it. As soon as the person was completely on the tile, the walls of the nearby club fell down and everyone started dancing around that person.

Its one of those things that you just have to see. Creative idea Microsoft.