Stack (headquarters) Vertex Pharmaceuticals (headquarters) Wayfair (headquarters) Wellington Management Company (headquarters) Zipcar (headquarters) Sports Annual sporting events include: The Boston Marathon, which follows a course from Hopkinton to Boston The Head of the Charles Regatta The Lenox Industrial Tools 301, Sylvania 300 and New Hampshire Indy 225 auto races at the New Hampshire Motor Speedway oval track. Transportation Interstates U.S. Routes State Highways Bridges and tunnels Boston University Bridge, carrying Route 2 Callahan Tunnel, carrying Route 1A Northbound Charles M. Braga Jr. Memorial Bridge, carrying Interstate 195 Claiborne Pell Newport Bridge, carrying Route 138 Fore River Bridge, carrying Massachusetts Route 3A Harvard Bridge, carrying Route 2A Longfellow Bridge, carrying Massachusetts Route 3, US Route 3, and the MBTA Red Line North Washington Street Bridge, carrying Route 99 Sumner Tunnel, carrying Route 1A Southbound Ted Williams Tunnel, carrying I-90 Thomas P. O'Neill Jr. Tunnel, carrying I-93 and Routes 1 and 3 concurrently Tobin Bridge, carrying Route 1 Zakim Bunker Hill Bridge, carrying Interstate 93, Route 1 and Route 3 concurrently Airports Logan International Airport in Boston, northeast of downtown Boston, New England's largest transportation center Manchester–Boston Regional Airport in Manchester, New Hampshire T. F. Green Airport in Warwick, Rhode Island Hanscom Field in Bedford Norwood Memorial Airport Worcester Regional Airport Beverly Regional Airport Lawrence Municipal Airport Rail and bus Massachusetts Bay Transportation Authority (MBTA, generally known as the "T") rapid transit lines: Red Line heavy rail: Cambridge–Braintree and Boston (Dorchester) Orange Line heavy rail: Boston (Jamaica Plain)–Malden Blue Line heavy rail: Boston–Revere Green Line light rail/streetcar: Medford–Brighton and Newton Ashmont–Mattapan High-Speed Line streetcar: Ashmont–Milton–Mattapan Silver Line bus rapid transit South Station–Logan Airport and Downtown– MBTA Commuter Rail Old Colony Lines serving Plymouth County Providence/Stoughton Line serving northern Bristol County, central Norfolk County, Kent County, and Washington County, connecting to Providence, Rhode Island Fairmount Line shuttle service from South Station Franklin Line serving western Norfolk County Greenbush Line serving Boston's South Shore Needham Line serving Boston suburbs and Needham Framingham/Worcester Line serving southwestern Middlesex County, connecting to Worcester Fitchburg Line serving northwestern Middlesex County, connecting to Fitchburg Lowell Line serving northern Middlesex County Haverhill/Reading Line and Newburyport/Rockport Line serving Essex County & Boston's North Shore Amtrak service to New York City and Washington, D.C. Amtrak Downeaster service to Maine from North Station Massport Logan Express Plymouth & Brockton Street Railway Co. The first railway line in the United States was in Quincy.