The fully updated The Rough Guide to California is the definitive guide to the most visited state in the US. Now is a great time to visit: 2017 is the 50th anniversary of San Francisco's Summer of Love; the Wizarding World of Harry Potter has burst onto the scene at Universal Studios, and LA also boasts cool new contemporary art museum The Broad; there's been an explosion of microbreweries across the state; countless hiking trails beckon at Yosemite National Park and the backcountry wilderness of Sierra Nevada; whilst Historic Route 66 still offers all the kitsch Americana and romance of the open road.