LOS ANGELES, CA - MAY 21: A venomous southern Pacific rattlesnake tastes the air in Santa Ynez Canyon in Topanga State Park on May 21, 2008 in Los Angeles, California. California's entire state park system, the largest park system in the US, was included in the National Trust for Historic Preservation "11 Most Endangered Historic Places" of 2008. Although California Gov. Arnold Schwarzenegger recently backed off from his threat to close 48 state parks - almost 20 percent - to save money for the $10 billion-plus state budget deficit. The wilderness park is considered the world's largest wildland within the boundaries of a major city. Other American locations on the Endangered list include Manhattan's Lower East Side, the historic Art Deco icon Charity Hospital in New Orleans and the adjacent neighborhood, a modernist hotel in Dallas, and an Art Deco movie theater in Philadelphia. (Photo by David McNew/Getty Images)