Union Square, San Francisco, California in the context of "Stockton Street (San Francisco)"

Stockton Street is a north-south street in San Francisco. It begins at Market Street passing Union Square, a major shopping district in the city. It then runs underground for about two and a half blocks in Stockton Street Tunnel (lending its name to a separate, parallel street above the tunnel), passes through Chinatown and North Beach (Little Italy), and ends at Beach Street near the Pier 39 shopping center and tourist attraction.