They are. They're really expensive in the States, when you can find them, but almost every modern window (in Bavaria, at least) is one of these. They also come door-sized, so you can either open an outside door to walk through, or tilt it from the top to circulate air.

OP is probably just too dumb to figure out how to work them; they're fantastic, and I wish they were common here in the States.

Austria getting away with the exact same crimes once again. /s

Doors, lol.

Fuck you, my house has a drawbridge now!