Visit The B&O Railroad Museum's 40-acre historic site, regarded as the birthplace of American Railroading, at 901 W. Pratt Street. You can also visit the Ellicott City Station at 2711 Maryland Avenue in Ellicott City, and the Mount Clare Museum House, situated in Baltimore's oldest Georgian mansion that is filled with one of America's most important collections of furniture and decorative art, and located in Carroll Park. Passes provide admission to all three locations.