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.
Mission Hill, Boston
Like the adjacent neighborhood of Jamaica Plain to the south, Mission Hill was once a neighborhood of adjacent Roxbury before Roxbury's annexation by Boston. According to maps from the period, it was often referenced as Parker Hill (which is the name of the geographic feature in the area). After annexation (and more rapidly in recent years) the area slowly came to be considered a separate neighborhood of its own right. The majority of government, commercial, and institutional entities list "Mission Hill" in the breakdown of Boston neighborhoods and its boundaries generally agreed upon.