The IRT Broadway–Seventh Avenue Line is a New York City Subway line. It is one of several lines that serves the A Division, stretching from South Ferry in Lower Manhattan north to Van Cortlandt Park–242nd Street in Riverdale, Bronx. The Brooklyn Branch, known as the Wall and William Streets Branch during construction, from the main line at Chambers Street southeast through the Clark Street Tunnel to Borough Hall in Downtown Brooklyn, is also part of the Broadway–Seventh Avenue Line. The IRT Broadway–Seventh Avenue Line is the only line to have elevated stations in Manhattan, with two short stretches of elevated track at 125th Street and between Dyckman and 225th Streets.
50th Street, one of the line's original stations
Emergency exit, Furman Street, Brooklyn
1915 Seventh Avenue subway collapse with car fallen in tunnel
A 1 train in service departing 125th Street along part of the route of the Original Subway.
Downtown Brooklyn is the third largest central business district in New York City, and is located in the northwestern section of the borough of Brooklyn. The neighborhood is known for its office and residential buildings, such as the Williamsburgh Savings Bank Tower and the MetroTech Center office complex.
Skyline of Downtown Brooklyn seen from Lower Manhattan
The Williamsburgh Savings Bank Tower, a prominent symbol of Downtown Brooklyn
Adams Street/Brooklyn Bridge Boulevard, a major corridor through Downtown Brooklyn (2006)
Tillary Street, another major corridor