North Station is a major transportation hub located at Causeway and Nashua Streets in Boston, Massachusetts, United States. It is one of the city's two terminals for Amtrak and MBTA commuter trains, the other being South Station. The main concourse of North Station is located at the street level, immediately below TD Garden, a major sports venue in Boston, and home of the Boston Bruins hockey team and the Boston Celtics basketball team. The indoor sports arena is also used for rock concerts and other events, taking advantage of the extensive transportation connections at the site.