This amazing street painting, called Dies Irae, was created by Kurt Wenner in a medieval town square in Italy. Again, note that it is an anamorphic image - it only works from this viewpoint. If you walked around to the other side of the painting, it just would not work at all. Here, the human figure gives a sense of scale, as he peers into the abyss. In another street painting, called Reflections, the four human figures are an essential part of the image, as they look into their painted reflection...
Kurt Wenner's work is shown here with the artists permission.
Visit the Kurt Wenner web site.
Another artist who uses anamorphic techniques is the Hungarian István Orosz.