As the retail heart of the MGM MIRAGE CityCenter project, The Shops at Crystals is a 500,000-square-foot retail and entertainment space that serves as the connective tissue of the otherwise vertical “city within a city.” Crystalline stainless steel-clad volumes house the flagship retailers along The Strip while the spiraling roof structure animates the public arcade internally. Visible in a 180 degree-sweep from along the legendary Strip, the structure is a work of architecture read from many different angles.   The dramatic form and skylights of its spiraling roof soar over luxury retail and dining and accommodate a public space that features…