Whilst looking up "interesting" buildings, I spotted this:

http://www.guggenheimlasvegas.org/herm_home.html

It looks like they are staring to put "real" things in Los Vegas - whatever will they do next - swap the Luxor Hotel for a real pyramid? Put the real Statue of Libery on temporary display.

If there was one thing that I could trust in life was that if I saw a rock in Las Vegas it was bound to be hollow. Whatever next?