This $18.5 million house has a serious Hollywood pedigree. Built in 1926 on over half an acre, it was once owned by Harry Cohn, Betty Grable, Diane Keaton and Madonna. Keaton totally renovated the house, which now includes an oversized master suite that overlooks the property’s well-manicured grounds. The seven-bedroom, eight-bathroom property was designed by architect Wallace Neff and has been featured in Architectural Digest. Outside, you’ll find courtyards, an outdoor fireplace, a dining area and a swimmer’s pool. The home itself features intricate craftsmanship, as well as modern appliances and technology. As if seven bedrooms aren’t enough, the property also comes complete with two guesthouses. And, as you’d expect with a celebrity’s home, it has a serious state-of-the-art security system.