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Photo: jimsohn1 from Alexandria, Virginia, USA, CC BY 2.0 via Wikimedia Commons
A historic mansion that is headquarters of the American Horticultural Society. The grounds are open to the public, and there is a garden shop.
River Farm, permanent home to the American Horticultural Society (AHS) headquarters, is a 27-acre (11 ha) landscape located at 7931 East Boulevard Drive, Alexandria, Virginia. The estate takes its name from a larger plot of land which formed an outlying part of George Washington's Mount Vernon estate.
© OpenStreetMap contributors
One of the largest remaining pieces of freshwater tidal wetlands left in the DC area, accessible by a short hiking trail
Popular with joggers and picnickers, the park holds defensive batteries from the former army installation, the exterior of which can be explored.
An oasis of wilderness in the middle of suburban sprawl, notable for the amount and variety of wildlife that congregates there. Features a large beaver lake with a boardwalk constructed across it. Popular with bird-watchers.
A 19th-century plantation house
George Washington's Mount Vernon Estate and Gardens; has its own article