Lady Gaga
Lady Gaga’s Beverly Hills home is fully equipped with a home theater, game room, and 800-bottle wine cellar. It also boasts an eight-stall barn, a riding area, and a guest house. Dan Romanelli, who founded the consumer products division of Warner Bros. and worked on Batman products, built the home and created its underground “Batcave,” where Gaga now enjoys a two-lane vintage bowling alley.