In 2004, MGM Mirage announced plans for CityCenter, a , $7 billion multi-use project on the site of the Boardwalk hotel and adjoining land. It consists of hotel, casino, condo, retail, art, business and other uses on the site. City Center is currently the largest such complex in the world. Construction began in April 2006, with most elements of the project opened in late 2009. Also in 2006, the Las Vegas Strip lost its longtime status as the world's highest-grossing gambling center, falling to second place behind Macau.