Fodor's Expert Review Greystone Mansion

Built in 1928, this stunning mansion resides in a discreet residential part of Beverly Hills, surrounded by 18 acres of manicured grounds that are open to the public. The historic house was built by oil magnate Ned Doheny (inspiration for the Daniel Day-Lewis character in There Will Be Blood) and has been featured in a number of films like The Big Lebowski, Spider-Man, The Social Network, and X-Men. Park rangers offer tours for $20 where you can gawk at the 46,000-square-foot estate with a bowling alley, secret panels for liquor, and even a screening room.