The Luxor Hotel (shaped like an Egyptian Pyramid) is 36 stories tall, required more than 150,000 cubic yards of concrete, six thousand construction workers and 18 months to build. It takes a specially designed window washing device 64 hours to clean the sides of the pyramid, which is covered by 13 acres of glass. The Luxor atrium is the world's largest and could comfortably hold nine Boeing 747 airplanes.
