Comprised of the oldest and most comprehensive collection of railroad history in the Western Hemisphere, the Baltimore & Ohio Railroad Museum, Inc. is a unique cultural and educational asset for the city and the region. An unparalleled roster of the 19th and 20th century railroad equipment, original shop buildings, and surviving tracks at the historic Mt. Clare site provide an integrated resource to present virtually every aspect of American railroad development and its impact on our society, culture and economy.more