You have to hand it to traditional lego artists - they do some pretty cool art and sculptures with Lego. Remind youyself by having a ganders www.brickartist.com.
However my recently discovery (coming from a Polish Lego blog of all things) is a trend for fine art lego. Famous works of fine art are reproduced but with yellow lego figures in place of the more traditional appraoch of using humans. In my eyes it beats the heck out of playing with those pesky small bricks for ages.