In the vast world of geometry and art, there are figures that challenge our perception and understanding of space. One of these figures is the Penrose Triangle, also known as the Tribar. This object, ...

Artists find mind-bending ways to bring impossible figures into three-dimensional reality In an impossible figure, seemingly real objects—or parts of objects—form geometric relations that physically ...

Here's what the Swedish artist Oscar Reutersvard did. In 1934, he got himself a pen and paper and drew four cubes, like this. He called this final version "Impossible Triangle of Opus 1 No. 293aa." I ...