2) Yosemite National Park
Naturalist John Muir was so captivated by the beauty of the area in the late 1800s that he fought for the creation of the park, helped establish the boundaries, and founded the Sierra Club to protect it. Thanks to photographers like Ansel Adams, Yosemite is the site of many iconic images. Half Dome is famous for its one smooth face, making it appear to have been cut in half and was considered inaccessible until the first successful climb in 1875. At 3,590 feet high, El Capitan is a huge draw for experienced rock climbers. Yosemite Falls is the fifth tallest waterfall in the world at 2,425 feet. Visitors ski, hike, fish, bike, raft, ride mules and camp in the world-renowned park.