The Best Illusion of the Year contest named its 2020 winner: "3D Schröder Staircase" by Kokichi Sugihara. The staircase has two interpretations, both of which look like a staircase being viewed from ...
If you ever checked out a book on optical illusions from your local library as a kid, you probably saw the classic Schröder’s stairs illusion: a 2D illustration of zig-zag lines that creates the ...