Outside the entrance to Caesar's Palace or the huge shopping complex next door - I'm not sure which...after visiting several of the mega-sites they all start blurring together!
Living statues (every hour on the hour the big guy in the middle and his buddies come to "life" and put on some sort of mythological presentation. We watched it but I certainly didn't understand it all. Give me puppets any day!
This appears to be out of doors, but no...it's all how the ceiling is painted and the lighting.