A Look Inside the Abandoned Tunnels Below Boston City Hall Plaza

Beneath the subterranean bowels of Boston's City Hall Plaza lie 200 feet of train tunnels that have been abandoned for nearly 60 years. Monday, visitors got to take a trip to another time.

In honor of Boston Preservation Month, the city gave tours for a single day.

The tunnel opened in 1898, providing space for two trains to pass through. It has been closed since 1960.

Monday's tour garnered enough interest that Boston is now considering the possibility of making the tunnel accessible for future tours.