Austrian designer Klemens Torggler created this incredibly impressive sliding door system. The designer's Evolution Door slides open without the use of tracks.

Just by using a gentle flick of the wrist, this unconventional room door activates the four triangles to open up to the next space.

Torggler's concept is based on rotating squares, which makes it possible to move the door sideways without the use of tracks. According to the designer, these technical tricks open up new applications for door buildings worldwide.

Check it out in the video below: