Secret subway line with antique trains back in service in New York City

Passengers wearing vintage clothes sit in the carriage on December 1, 2019. The return of the New York Transit Museum's vintage train rides signals the start of the holiday season in the Big Apple. The Transit Museum partners with the MTA for "Holiday Nostalgia Rides" event which opens decades-old subway trains to passengers each year. This year's rides begin on December 1, and the trains are expected to run every Sunday until December 29. [Photo: China News Service via VCG]