Tucked onto 67 acres between the Bellagio and Monte Carlo resorts on the Las Vegas Strip, the project is a 50-50 joint venture of locally based casino operator MGM Mirage Corp. and Dubai World, a conglomerate of businesses and projects controlled by the Dubai Government.

The project is anchored by Aria, a 61-story, 4,004-room gaming resort at the back of the site and Crystals, a 500,000-square-foot retail and entertainment district that opens onto the Las Vegas Strip. In between are three non-gaming hotels--the 400-unit Mandarin Oriental, 1,495-room Vdara condo-hotel and spa and the 400-room Harmon Hotel--and the development's only strictly residential buildings, the 674-unit Veer Towers.

As of this week, all of the components within CityCenter next month have been certified LEED-Gold by the US Green Building Council. Aria and Vdara, the first Las Vegas hotels to achieve LEED-Gold certification by the U.S. Green Building Council, were certified earlier this year along with Crystals. This week, MGM Mirage said the Mandarin Oriental and Veer Towers recently were certified as well.