The Cosmopolitan of Las Vegas (commonly referred to simply as The Cosmopolitan or The Cosmo) is a luxury resort casino and hotel on the Las Vegas Strip in Paradise, Nevada. The resort opened on December 15, 2010, and is located just south of the Bellagio on the west side of Las Vegas Boulevard. It consists of two highrise towers, the Boulevard Tower and the Chelsea Tower, both of which are 184 meters (603 ft) tall. The $3.9 billion project features 3,027 rooms, a 110,000 sq ft (10,000 m2) casino, 300,000 sq ft (28,000 m2) of retail and restaurant space, a 40,000 sq ft (3,700 m2) spa and fitness facility, a 3,200-seat theater, and 150,000 sq ft (14,000 m2) of meeting and convention space. In 2013, the hotel was rated "The Best Hotel in the World" by Gogobot. In 2015, the resort was named to the Condé Nast Traveller Gold List as one of the "Top Hotels in the World".