Heinlein-inspired tesseract house in Second Life

James sez, "A Stanford math student just created a working version of a hypercube house, inspired by Robert A. Heinlein's classic "– And He Built A Crooked House" short story. When you walk through four rooms in a straight line, or make three ninety degree turns, and you end up right back in the place you started. What's just as cool is the ingenious programming the creator, Seifert Surface, uses to maintain the illusion of moving through four dimensions."

Link

(Thanks, James!)