Many pressurized aircraft have the type of plug doors that open by first swinging inside, rotating about at least two axes, then moving through the opening and ending up outside parallel with the fuselage.
I'm intrigued by the mechanism that makes this possible, but I have never been able to really see how these intricate hinges work. As a passenger it's hard to even witness the actual opening or closing of the door. Some drawings are to be found on the web, but none that I know of give a clear understanding of its workings. Does anybody know of a video or an animation that gives some insight?