That's right, you guessed it - Windows!
wait... that's not what you were thinking? What can I say, it doesn't take much for me and German windows are awesome.
American windows go in two directions: up or down. How two dimensional. German windows, on the other hand, are much more versatile.
See, if you turn the handle this way:
But if you go a little bit further and turn the handle all the way up:
They open like this.
Mind = Blown!