What are some of the best looking graffiti wall paintings you've seen?

But for the best graffiti you've ever seen, you'd have to mention an artist who's now on fire: Michel Basquiat. The man is arguably the titan of the graffiti world, and he's now a potent star in the contemporary art market, with one of his works recently selling for more than $100 million. Basquiat started out as a graffiti artist and became famous under the name "SAMO".