Baltimore Penn Station, formally named Baltimore Pennsylvania Station in full, is the main inter-city passenger rail hub in Baltimore, Maryland. Designed by New York architect Kenneth MacKenzie Murchison (1872–1938), it was constructed in 1911 in the Beaux-Arts style of architecture for the Pennsylvania Railroad. It is located at 1515 N. Charles Street, about a mile and a half north of downtown and the Inner Harbor, between the Mount Vernon neighborhood to the south, and Station North to the north. Originally called Union Station because it served the Pennsylvania Railroad and Western Maryland Railway, it was renamed to match other Pennsylvania Stations in 1928. The building sits on a raised "island" of sorts between two open trenches, one for the Jones Falls Expressway and the other the tracks of the Northeast Corridor (NEC). The NEC approaches from the south through the two-track, 7,660-foot Baltimore and Potomac Tunnel, which opened in 1873 and whose 30 mph limit, sharp curves, and steep grades make it one of the NEC's worst bottlenecks. The NEC's northern approach is the 1873 Union Tunnel, which has one single-track bore and one double-track bore. Penn Station is the eighth-busiest Amtrak rail station in the United States by number of passengers served each year. From Wikipedia
