Iowa State University's Virtual Reality Applications Center has a virtual reality cube called C6. They recently poured another $5 million into upgrades, to make the resolution twice that of any other virtual reality room in the world. All 6 sides have images and sound. No smells yet though.
"The public is invited to tour C6 -- Iowa State's 10-foot by 10-foot virtual reality cube that immerses users in computer-generated 3-D images and eight channels of audio -- from 9 a.m. to 4 p.m. Thursday, April 26, in Howe Hall on the Iowa State campus. Reservations are required and can be made by calling (515) 294-3092. The tours will be part of the Emerging Technologies Conference 07."http://www.sciencedaily.com/releases/2007/03/070326152552.htm