Penrose triangle
Oscar Reutersvärd; independently Lionel & Roger Penrose
Three convincing corners. One impossible connection.
Impossible objects / 2007 drawing
Impossible hexagon
A six-sided beam loop carries impossible depth around its perimeter.
TRY THIS
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
THE IMAGE IN THIS ARCHIVE
Original uploader was Trilink at en.wikipedia
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Download imageFrequently asked questions
What is Impossible hexagon?
A six-sided beam loop carries impossible depth around its perimeter.
What should I look for in Impossible hexagon?
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
What explains Impossible hexagon?
More corners extend the same kind of contradictory solid reading found in a tribar. Follow one face around the hexagon and inspect how it arrives back at its starting point.
Another way to see it
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Impossible cube
M. C. Escher; modern redraw by 4C and Belbury
A familiar cube frame acquires an impossible set of overlaps.
