Impossible cube

Rarity: Common

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At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

The impossible cube or irrational cube is an impossible object invented by M.C. Escher for his 1958 print Belvedere. It is a two-dimensional figure that superficially resembles a perspective drawing of a three-dimensional cube, with its features drawn inconsistently from the way they would appear in an actual cube.

Excerpt from the Wikipedia article “Impossible cube”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: 4C, redraw and shading added by Belbury, CC BY 4.0, via Wikimedia Commons.