They play with our perception, often making us second-guess what we see. A recent optical illusion has been making waves online: a seemingly simple orange and white checkered pattern that hides a ...

The Museum of Illusions, which opens Thursday on Pittsburgh’s North Side, offers various optical illusion experiences ... There is a dodecahedron, a three-dimensional figure having 12 ...

I loved the Infinity Dodecahedron, which lets you gaze into a series of mirrored pentagons seeming to reach endlessly into the beyond. And the Building Illusion, which through clever 45-degree ...