Web Urbanist Site

I enjoy visiting the Web Urbanist site and just discovered a great retrospective of 3-D street art drawings. They say:

Three dimensional drawing nothing new – the concept itself dates back to the Greeks in the 5th Century BC – but employing perspectival techniques on such a huge scale and with such a broad scope is a much more recent innovation. Some 3D street art takes up dozens of feet of sidewalk to create illusions of depth and three-dimensionality while other mural works cover the entire sides of twelve-story buildings.

Use the link above to see some more of this astounding work.