The Shops at Crystals is an upscale shopping mall in the CityCenter complex on the Las Vegas Strip in Paradise, Nevada. The 500,000-square-foot (46,000 m2) mall contains high-end retailers, gourmet restaurants, and art galleries. The exterior design was created by Daniel Libeskind, while David Rockwell worked on interiors. For its environmentally friendly design, Crystals received LEED Gold Core & Shell certification from the U.S. Green Building Council, making it the largest retail district in the world to achieve such a feat.