4Golden Gate Bridge (California)
Spanning the entrance to San Francisco Bay, the Golden Gate Bridge is one of the most photographed structures in the world. This bright red suspension bridge, completed in 1937, is an engineering marvel and a symbol of the West Coast.
Why Visit: Walking or biking across the bridge offers incredible views of the San Francisco skyline, Alcatraz Island, and the Pacific Ocean. Nearby, visitors can explore the charming town of Sausalito or take a boat tour around the bay.