World Builder

If anyone has every used a 3D architect program, like Google Sketchup, or AutoCAD you might find this pretty neat (even if you haven't used those programs you'll still likely find this video to be very interesting). A man builds a 3D virtual world for his wife. There's a little bit of a 'suprise' at the end in how she actually gets in there but i won't ruin the whole thing for you...

World Builder