These layered creations are surprisingly realistic, even in black and white, thanks in part to their scale and reinforced by their shadows and context.

This graffiti isn't made to be seen in person - artist INSA paints and repaints each mural to create animated GIFs that can only be viewed on computers.

Street artist ROA brings bold black-and-white animals measuring three stories in height to the gritty streets of Panama City in a new series of work.

Artist Mirko Reisser has long developed a highly personalized (and profoundly cool) approach to making two-dimensional tags appear three-dimensional on surfaces.

Though naturally unique, the work of any of these 21 eyebombers is also inherently anonymous due to the similarly simple materials used in each case.

Artist Felice Varini creates large-scale anamorphic illusions on urban surfaces, which only come together when viewed from a certain perspective.

Simple black-outlined, white-filled, faux-three-dimensional shapes that render urban happenstance into something with a humorous sense of mathematical order.

Street artist HENSE turned an abandoned church in Washington, D.C. into a massive abstract mural that stands as a symbol of hopes for the neighborhood's future.

Madrid-based street artist Sam3 creates massive murals covering entire multi-story buildings in cities like Vienna, Valencia, Quito, Berlin and Atlanta.

An urban light art project in Detroit gave citizens the chance to communicate their thoughts and feelings in giant letters on the side of a downtown building.