Retro Aperture Science Portal Posters

Portal is one of the highest rated videogames of all time.  The wittiness of the characters, the iconic companion cube, the science of the portals themselves, and the overall gaming experience has made it a cult classic, and recently, Portal 2 was released to much critical acclaim as well.

The fictional corporation in the game, Aperture Science, also has a devoted following, and they created these awesome retro posters.