The #noshittyphotos project adds signs to pavements at the most popular landmarks in NYC and San Francisco.
Bob Partington uses a hidden compartment in his case to secretly tag the streets of NYC.
A device that keeps street artists safe from the eyes of Big Brother.
Artist Tom Christiansen's 'Graffiti Collection' is made from layers of spray paint.
Colorfully dyed birds are spotted flying over city streets during the Venice Biennale.
The new car helps famous street artist Jeff Soto create a unique mural.
A unique time-lapse film was made over the course of 144 hours.