It is the gold standard of urban water supplies. The New York City watershed was assembled during the 20th century, and the system’s underground aqueducts are considered an engineering marvel. Produced by: Melanie Burford and Greg Moyer Subscribe to the Times Video newsletter for free and get a handpicked selection of the best videos from The New York Times every week: bit.ly/timesvideonewsletter Subscribe on YouTube: bit.ly/U8Ys7n Watch more videos at: nytimes.com/video --------------------------------------------------------------- Want more from The New York Times? Twitter: twitter.com/nytvideo Facebook: facebook.com/nytimes Google+: plus.google.com/+nytimes Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch. ...