Rocks lie on the beach at Crissy Field, San Francisco.
A conglomeration of stairways at Alcatraz Federal Penitentiary, San Francisco.
The smoke stack of the power house at Alcatraz Federal Penitentiary rises into the sky over San Francisco Bay.
A brick archway offers a view of San Francisco Bay at the historic Alcatraz Federal Penitentiary.
A tour boat sails past ruins at Alcatraz Federal Penitentiary in San Francisco Bay.
The main cell block at Alcatraz Prison in San Francisco decays in the elements.
The ruins of Alcatraz Federal Penitentiary rise from San Francisco Bay.
The historic Alcatraz Island sits in San Francisco Bay, partially shrouded by the fog.
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