The architecture design of Las Vegas casinos is always inspiring, and the new City Center is no exception. These ultra-modern structures was found inside the Aria Resort & Casino. The shaped objects look like they were built by aliens from outer space. Upon close examination, these are clusters of cactus gardens surrounded by 1/4-pyramids, with mirrors to redirect and trap sunlight from the glass roof above. May be the aliens did design and build these incubators to keep the cactus happy on board of their spaceship going home!!