So amazing to find out how these brilliant artist are doing it.Lego 3-D sidewalk art
David Zinn - street artist chalk
David Zinn street art
Incredible 'trick of the eye' murals that bring a Venetian cafe ...
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Street art by Super A in Wittenberg, Germany via Graffiti Porn
Wheel of Fortune. This was done in Santiago, Chile for the Telecommunications company 3M as part of their "Ingenuity" campaign. It was the most difficult drawing I have ever attempted. Julian Beever
30 Amazing 3D Street Art Paintings
Fantastic 3d Art