![San Francisco, CA](https://media.shermanstravel.com/Slideshows/us-solo-cities/thumb/xlarge/1920x748_sanfrancisco_istock-minddream-jpg.jpg)
Photo: San Francisco, CA / Mind Dream/iStock
San Francisco, CA
Hop the trolley or rent a bike to explore Golden Gate Park, the ruins of The Sutro Baths, the Haight-Ashbury neighborhood (a former hippy haven), and the Castro District (which was central to the LGBT movement and is known for its colorful Victorian homes). Take a ferry to Alcatraz (book in advance) or see the noisy seals at Fisherman’s Wharf. For panoramic city views, hike Twin Peaks; afterwards, refuel over a bowl of noodles in the largest Chinatown outside Asia.