Austrian artist (Klemens Torggler) has designed the coolest door I have ever seen. After peeping them in action I had to do a Google search just to make sure the video wasn't fake, and it isn't.

I now present to you two squares that rotate and interlock leaving the door opening and closing like some sort of new age Lamborghini.

In this video you will see the door in action and ultimately think to yourself: "If only Torggler could design creak free floors."