Secrets of New YorkSecrets of New YorkSeason 32007 · 4 episodesEpisodes1Tribeca: Mysteries of New York's Backlot Revealed2The SewersThe New York City sewer system is an engineering marvel and a murky source of urban legend. It contains more than 6,000 miles of water mains and pipes, and handles more than a billion gallons of waste each day. Watch as host Kelly Choi solves the mystery of the sewer system.3Made in New York: City of Industry4New York City: The Most ValuableSeason 1Season 2