Arbor Hill Historic District–Ten Broeck Triangle
In 1975 several residents of the Ten Broeck Triangle formed the Arbor Hill Concerned Citizens Association (AHCCA) to lobby the city for improvements in neighborhood services. Many of them lived in the surviving townhouses, which they had often restored themselves. They saw gentrification as the key to revitalizing the neighborhood, due to its proximity to downtown Albany and the growing service-sector jobs there. To further this goal, they worked with preservationists to have the triangle recognized as a historic district. That area was duly listed on the Register in 1978 under that name.
Colony Hill
Colony Hill is a tiny neighborhood located in the southwest corner of Glover Archbold Park in Northwest Washington, D.C. It is bounded on the north and east by the park, on the south by Reservoir Road NW, and on the west by Foxhall Road NW.