Steve Duncan is a New-York-based urban historian and photographer who has explored and photographed sewers and underground infrastructure beneath New York, Paris, London, Rome, Naples, Stockholm, Berlin, Moscow, Montreal, Toronto, Chicago, Los Angeles, Calcutta, and many other cities. He served as the host of a Discovery Channel show on urban history from 2004 to 2005, and has appeared on various other programs as an expert on New York City’s underground infrastructure. His work has appeared in publications including the New York Times, GEO, Men’s Journal, Outside Magazine, Playboy, New York Archives Magazine, Arcade Magazine, Welt der Wunder, and others. His collaborative documentary film work has been featured at the Mountainfilm film festival (Director’s Choice Award, 2011) and at the MoMA in New York City. He is currently working on his PhD in urban geography at the CUNY Graduate Center in NYC.