Banksy is a perfect example of an street artist who literally puts a connection to the relationship of space and time. His stencils on walls, grounds, pretty much anywhere, gives a connective relationship to the people who see it. And especially to the environment to where that stencil is placed. Reminds you of those trick paintings on the wall where it looks like a rhino is coming at you or a guy is stealing a painting. He puts such great humor into them as well.