In 2000, Banksy was a largely unknown street artist hanging around downtown Manhattan when the police nabbed him for trying to deface a billboard.

If this happens to your beer when the can is cracked open or the bartender opens the tap, it's a definite red flag. Here's why, according to an expert.

Vivid blues, yellows and reds make the brick facades along West 18th Street pop. Paintings of faces, birds and other subjects draw foot traffic into alleyways and eyes ...