Rafaël Rozendaal is a Dutch-Brazilian mixed-media artist. He has created a large series of interactive website art pieces, in which each domain name is a separate piece.
The domains are a nice break from normal web experiences (i.e. blogs, social sites, contact forms, etc.). Here are some of my favorite Rozendaal web projects.
http://www.misternicehands.com/
Pull the finger. Revel in immaturity.
Click, click, boom.
http://www.towardsandbeyond.com/
Wander the cubic maze. (Uses the mouse and arrow keys.)
http://www.tossingturning.com/
Lemon vs. circle. Crank your speaker volume.
