what is the oldest subway system in the us
Tremont Street Subway The Tremont Street Subway in Boston's MBTA Subway system is the oldest subway tunnel in North America and the third oldest worldwide to exclusively use electric traction (after the City and South London Railway in 1890, and the Budapest Metro's Line 1 in 1896), opening on September 1, 1897.[2][3] It was originally built to get streetcar lines off the traffic-clogged streets, instead of as a true rapid transit line. It now forms the central part of the Green Line, connecting Boylston Street to Park Street and Government Center stations.
London Bridge station London Bridge is a central London railway terminus and connected London Underground station in Southwark, occupying a large area on three levels immediately south-east of London Bridge and 1.6 miles (2.6Â km) east of Charing Cross. The main line station is the oldest railway station in London fare zone 1 and one of the oldest in the world having opened in 1836. It is one of two main line termini in London to the south of the River Thames, the other being Waterloo.