Like straight out of a movie, Steven Duncan explores the underside of hidden urban spaces going into sewers, to the tops of bridges and even along subway tracks. He calls it Guerrilla History and Urban Exploration - I call it plain old crazy and brave. Duncan says he's "peeling back the layers of a city to see what's underneath." To see NYC's strangely gorgeous sewer system, the first (closed) subway station and a breathtaking view of the city from the top of the Williamsburg bridge, watch the video below. My fear of heights kicks in on the bridge part and I felt like I was watching an action movie
Duncan also sells these INCREDIBLE photos from all of his journeys which include cities all over the US as well as London, Berlin, Paris, Rome and tons of others.