California is the most visited state in the United States, Disneyland is the United States' second most visited theme park, and California's national parks attract almost 30 million visitors a year. Los Angeles-as the fourth largest destination for domestic travel in the U.S. and the second-ranked destination for overseas visitors, behind only New York-welcomed 25 million visitors in 2008. San Francisco is ranked in the top 10 most visited US cities, with over 15 million visitors per year. Neighboring Napa County greeted 4 million visitors in 2008, and Sonoma Valley hosted 7 million visitors.