Located inside South Germantown Recreational Park, this museum boasts a broad and diverse collection of dairy farm-related memorabilia, interesting exhibits, and even interactive model milking cows to educate and entertain visitors.

Located on what was once a 350-acre farm, the King Barn Dairy MOOseum is housed in a cement block, 72-stanchion dairy barn that dates back to 1930. It was built by James and Macie King after 13 of the original buildings they had purchased in 1913 had been destroyed by a tragic fire in 1926. The King Family managed the barn for over 30 years. After James King died in 1958, Macie and their son ran the business for two more years before selling the family business.

The farm was purchased some years later by the Maryland National Capital Park and Planning Commission, and with support from corporate and individual donors, the land was developed into the South Germantown Recreational Park and Maryland Soccerplex.

Though the barn had deteriorated over the years, it was preserved due to its solid construction and augmented with replicas of the original silos. The MOOseum welcomed its first visitors in June 2010, followed by a ribbon-cutting ceremony and official opening on October 23, 2010.

The MOOseum includes exhibits that will interest visitors of all ages, including two model cows on which visitors can try out their milking technique. Other exhibits include various milk bottles, a collection of glass cow figurines, a database of all known dairy farms that have existed in Montgomery County, Maryland. There are also a craft room and play room to pique the interest of younger visitors.

The docents are extremely friendly and knowledgeable on all aspects of dairy farming, and can also point out one particularly old tree that has been around since before the King Family bought the farm.