{"@context":"http://schema.org/","telephone":"771-208-1555","description":"The 18th century Harmony Hall mansion is located on a 62.5-acre open pasture land estate along the Potomac River.  This estate was purchased by the National Park Service in 1966, to preserve southern Maryland cultural heritage. Surrounded by a rich landscape, it offers visitors many chances to connect with Colonial History. The park also home to the remains of the Want Water House and canal.","containsPlace":[],"openingHoursSpecification":[{"dayOfWeek":"http://schema.org/Sunday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"},{"dayOfWeek":"http://schema.org/Monday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"},{"dayOfWeek":"http://schema.org/Tuesday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"},{"dayOfWeek":"http://schema.org/Wednesday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"},{"dayOfWeek":"http://schema.org/Thursday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"},{"dayOfWeek":"http://schema.org/Friday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"},{"dayOfWeek":"http://schema.org/Saturday","closes":"22:00:00","description":"Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.","@type":"OpeningHoursSpecification","opens":"06:00:00","label":"","name":"Harmony Hall Grounds"}],"@type":"Place","branchCode":"haha","address":[{"postalCode":"20744     ","@context":"http://schema.org/","addressRegion":"MD","@type":"PostalAddress","streetAddress":"10702 Livingston Road  ","addressLocality":"Fort Washington","name":"Physical Address"},{"postalCode":"20744     ","@context":"http://schema.org/","addressRegion":"MD","@type":"PostalAddress","streetAddress":"Fort Washington Park  Attn: Harmony Hall  13551 Fort Washington Road","addressLocality":"Fort Washington","name":"Mailing Address"}],"url":"https://www.nps.gov/haha/","name":"Harmony Hall "}