Over the weekend, street artist Banksy pulled an outrageous stunt in Central Park, selling valuable art on the cheap to unsuspecting tourists. For today's installment in his month-long series on ...

Girl With Balloon, 2004. Courtesy of Pest Control Office, Banksy, London. One of Banksy's well-known pieces is called Sweep it Under the Carpet and was made in 2006 on a wall in London.