There is a street artist in Paris that goes by the name of "Invader". His art is mosaic pieces based on the early pixel figures from the game of the same name. He puts his art on buildings, usually without permission. He calls them "invasions". He has over 1600 installations in Paris and has branched out to other cities, including Miami. Here is some of his work. The last one is probably one of his early invasions. You can see where the building as been painted and they did a poor job trying to paint around it..