Penrose triangle
Oscar Reutersvärd; independently Lionel & Roger Penrose
Three convincing corners. One impossible connection.
Impossible objects / 2011 drawing
Impossible pentagram
A five-pointed star is drawn as an impossible interlaced solid.
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
AnonMoos
Original file & attribution · Public domain
This locally stored image is a Wikimedia Commons rendition (resized or rendered from the source file). The full original is linked from the source record. Gallery previews may be resized or converted to WebP; animated previews show the first frame.
Download imageFrequently asked questions
What is Impossible pentagram?
A five-pointed star is drawn as an impossible interlaced solid.
What should I look for in Impossible pentagram?
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
What explains Impossible pentagram?
A flat pentagram is possible. This version gives its bands solid faces and connections that conflict when traced through the entire star.
Another way to see it
Explore this category
Impossible cube
M. C. Escher; modern redraw by 4C and Belbury
A familiar cube frame acquires an impossible set of overlaps.
