Not many people know about San Francisco’s abandoned sewer tunnels, but there’s a whole world down there. Photographer Evan Thompson decided to explore – camera in hand, of course. Check out his urban cave diving adventure!
Would you be into checking these tunnels out yourself, or are you happier looking at the pictures above ground?
Source:
http://thehundreds.com/san-francisco-tunnels/
Tags: San Fransisco
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