One artist whose work I enjoy immensely is Liu Bolin. He is a Chinese artist (Born in Shandong province in 1973) who is famous for being "The invisible man".
He paints himself into his surrounds. The Idea behind his work is that people are very much effected by their surroundings. I Really LOVE it. here is a website that has some of his work posted. There was another website I was on that listed all of his work, and the thoughts behind each piece, I Really Enjoy art that makes you think, especially when it is fun.