Home Gyms of the Rich and Sporty

For the athletic millionaire, is there any better extravagance than a private court, field, rink, pool, or gym to practice their chosen obsession? Take Mark Wahlberg, for example, a ripped star whose listed Beverly Hills home ($14M) features a 2,500-square-foot gym with every conceivable piece of workout equipment. Click over for more. [Curbed National]