A series of 5 posters featuring some of the most famous “impossible figures”, these optical illusions discovered by Oscar Reutersvärd (Penrose triangle) and Lionel & Roger Penrose (Penrose stairs).

A series of 5 posters featuring some of the most famous “impossible figures”, these optical illusions discovered by Oscar Reutersvärd (Penrose triangle) and Lionel & Roger Penrose (Penrose stairs).

Learn How to Draw an Impossible Triangle - Simple Steps Drawing Lesson

Learn How to Draw an Impossible Triangle - Simple Steps Drawing Lesson. Called the Penrose triangle

Sacred Geometry. Set of figures with sacred symbols and elements. Vector illustration. Mystical and esoteric forms: Flower of Life, Merkaba, Penrose triangle, pentagram, octagram. Spiritual logo. - stock vector

Set of figures with sacred symbols and elements. Mystical and esoteric forms: Flower of Life, Merkaba, Penrose triangle, pentagram, octagram. Spiritual logo - buy this stock vector on Shutterstock & find other images.

Google Image Result for http://im-possible.info/images/art/misc/crop-circles/wadenhill58.jpg

Crop circle with Penrose triangle in Waden Hill, Averbury (Wiltshire) 2005

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