The Coolest Door Ever

Evolution Door by an Austrian artist Klemens Torggler.

Instead of a single panel attached to a frame by two hinges, Torggler’s Evolution Door folds into four triangular sections that collapse in on themselves and turn round before straightening back up into a rectangle.

“The special construction makes it possible to move the door sideways without the use of tracks,” explained Torggler. “This technical trick opens up new applications for the door.”