PARIS — Felice Varini’s environmental paintings can only be experienced in architectural space. A geometric abstract painter, his site-specific works are in the vein of Daniel Buren and Niele Toroni’s ...

Key points We are very familiar with visual and spatial illusions, and how perception of value is changed by circumstance. Less research has looked at how we perceive time, leaving room for ...

Illusions go viral: From Reddit’s hidden-number spirals to the legendary duck-rabbit, optical illusions keep sparking debates and fascination online by revealing how context shapes what we see.

German artist Peter Kogler projects large-scale illusions on the inside and outside of buildings, stadiums, bridges and other extensions in space. The result is a stunning combination of visuals and ...

In 2011, researchers Jason Tangen, Sean Murphy, and Matthew Thompson at the University of Queensland discovered a striking visual illusion while preparing a set of face images for a study. As they ...