Caption Towers on the west span of the San Francisco-Oakland Bay Bridge, San Francisco, California
Keywords Attraction, Bay Area, Bay Bridge, Bridge, CA, Calif., California, Civil engineering, Color, Colour, Connect, Connection, Construction, Destination, Engineering, Expressway, Gray, Highway, Industrial, Industry, Landmark, Majestic, Metal, Road, Roadway, San Francisco, San Francisco Bay Area, San Francisco-Oakland Bay Bridge, Structural engineering, Structure, Suspension bridge, Tall, Tourism, Tower, Towering, Travel, Traveling, Travelling, U.S., U.S.A., United States of America, US, USA
