A small but well-curated local history museum in the Old Town district, covering Manassas from its origins as a railroad junction through the Civil War and into the 20th century. The collection includes artifacts from the two battles, railroad history, and life in Prince William County across the centuries.
Worth an hour, especially if you want context before heading out to the battlefield. The museum sits on West Main Street in the heart of Old Town, within easy walking distance of the other shops and restaurants along Center Street.