For some people a door is just a door, for Austrian artist Klemens Torggler, a door is a functional piece of art. Torggler’s doors are made with rotating squares which move kinetically without the use of any traditional sliding door tracks. Torggler created these amazing doors based off of his artistic work and if you want to buy one, they have to be custom ordered. He plans to eventually commercialize the doors, at this point the price to purchase them is undisclosed. Check out his website http://torggler.co.at/ for contact info and more of his artwork.
See Klemens Torggler’s amazing doors in Action!
Here is one made of 200kg/440lbs of steels and opens with the flick of a finger.