Arbor Hill Historic District–Ten Broeck Triangle
Open space within the district include a few vacant lots and parking lots. Most are planned however, such as Van Rensselaer Park, the neighboring space around the church known as St. Joseph's park, and the large parcel at the district's northeast corner where the Ten Broeck Mansion and its gardens (and formerly carriage house) are located. Mature trees are abundant throughout. Topographically the district rises almost a hundred feet (30 m) from its eastern and southern edges to level terrain along North Swan between Second and Third. This reflects the ravines that existed there when Albany was first settled, later partially filled in to facilitate development, now the neighborhood of Sheridan Hollow, which separates Arbor Hill and the district from downtown Albany.
Oxon Hill, Maryland
Oxon Hill includes many garden apartment and townhouse communities along with single-family detached homes built mostly between the 1940s when suburban development began, through the early 1990s (except for the newer National Harbor condominiums), including the incorporated town Forest Heights. In earlier decades, many residents were scientists from the adjacent U.S. Naval Research Laboratory, Air Force personnel, or musicians in military bands, but very few are now, as today such professionals prefer newer and more upscale communities. Oxon Hill's two principal shopping centers ("Rivertowne", built about 1985 which includes a K-Mart, Safeway, Staples, Ross Stores Inc. and Home Depot, and "Eastover", built about 1955) attract neighborhood customers as well as shoppers from nearby Southeast Washington, D.C. Eastover, located at the D.C./state line, is a hub of many bus routes, some of them operating 24 hours a day, and has a Prince George's County Police station. The apartment communities closest to the D.C. line are informally called by their original name "Glassmanor", although rental companies have officially given them newer names. Rather unusual community features of Oxon Hill are a nursing home and a large cultural center, both operated for an ethnic Filipino population who are numerous in Oxon Hill and Fort Washington. A Walmart was scheduled to open in 2014 but has since been delayed for site layout revisions.