San Francisco is a bustling metropolis and jewel of Northern California in the United States. Go across the iconic Golden Gate Bridge, one of the most photographed sites in the city. Visitors can choose to walk, cycle or ride through the bridge. Nob Hill, a locality on the San Francisco side, provides wonderful views over the bridge. Visit Alcatraz penitentiary, one of America's infamous prisons to get a glimpse of the life of a prisoner. Head to Fisherman's Wharf, a waterfront area filled with shops, buildings, restaurants, and cafes. The wharf is the place to get a taste of the city and its people. Explore the city on a cable car through the Powell Mason and Powell Hyde routes. Along the way see major tourist attractions - Ghirardelli square, the ferry building, Nob Hill and Lombard Street. At 922 feet, the twin peaks in the city offer fantastic views of the Bay area.