The Baltimore and Ohio Railroad Museum is located in Baltimore, Maryland and showcases the history of one of the oldest railroads in the United States. The museum features a vast collection of locomotives, passenger cars, and other artifacts that highlight the significance of the B&O Railroad in the development of American transportation. Visitors can explore both indoor and outdoor exhibits, including the historic roundhouse, which houses many restored trains. The museum also offers educational programs and events, making it a valuable resource for those interested in the history of railroads and their impact on society.