Hat tip to Wretchard at The Belmont Club for the link to this: The Java 3D-enabled CAVE at the Sun Center of Excellence for Visual Genomics
There really isn't a good description on their site -- it is a 3D imersive room -- a holodeck if you will. They loaded a human model with detail down to the cellular level and visitors can wander through the 3D projection. Looks like a lot of fun!