Mansion, a night club in Miami Beach, Fla., attempts to create a glamorous atmosphere in a Miami Beach neighborhood that is undergoing gentrification. The club features antebellum architecture, sweeping staircases, ornate fireplaces, crystal chandeliers and Venetian glass mirrors. The club is open in the evening hours and features dance music played at loud volumes and multiple full-service bars. Several celebrities have visited Mansion since its 2004 inception. The night club is owned by The Opium Group, a Miami Beach-based company that is the city s largest employer, with a staff of more than 400 individuals. The Opium Group also owns Opium Garden and Prive, two other popular Miami Beach night clubs.