The Harmony Hall mansion in Fort Washington is a beautiful mansion sited in almost 62.5 acres of open grassland along part of the Potomac River. The history of the Harmony Hall estate goes back to 1769, which explains its historical value and why the National Park Services purchased this property in 1966 to preserve the history and culture of the hall. Needless to say, they did it well, and now visitors can come here to connect with the history of colonial times while appreciating the mansion and the beauty of its surrounding scenery.

13551 Fort Washington Rd., Fort Washington, MD 20744, Phone: 301-763-4600

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