In the mid 1800s, New York City was one of the most crowded places on earth. The congested streets and pokey transportation system were a source of constant complaint. On March 24, 1900, ground was broken for the Big Apple's subway; the Interborough Rapid Transit Line opened four years later, running more than 26 miles of underground track at the speed of 35 miles per hour. Soon thousands in the city were "doing the subway."
Released in 1997, New York Underground is a documentary and history film (US). It was directed by Ric Burns and written by Elena Mannes. The cast is led by Len Cariou and David McCullough. With a runtime of 56m, the film is available in full HD.
To watch New York Underground online free in HD, press Watch Now above and pick any server; the movie plays instantly on MyFlixer with no account needed. If you like documentary and history movies, 9/11: Inside the President's War Room, 102 Minutes That Changed America and Secret Origin: The Story of DC Comics are worth adding to your list.