Pennsylvania Avenue lighthearted celebrations, including a series of day- and nighttime Shriner's parades in the 1920s and 1930s. Thomas and Concepcion Picciotto are the founders of the White House Peace Vigil, the longest running anti-nuclear peace vigil in the US, at Lafayette Square on the 1600 block of Pennsylvania Avenue. After the Oklahoma City bombing in 1995, the Secret Service closed the portion of Pennsylvania Avenue in front of the White House to all vehicular traffic. Pedestrian and bicycle traffic, however, was still permitted on the sidewalk. After 9/11 this policy was made permanent. Near the White House traffic is redirected to
Academy Hill Historic District (Greensburg, Pennsylvania) modest houses that represent middle-class and working-class residential architecture in the pre-World War II era. In order by house number: In order by house number: In order by house number: Academy Hill Historic District (Greensburg, Pennsylvania) The Academy Hill Historic District of Greensburg, Pennsylvania, is bounded approximately by Baughman Street, North Maple Avenue, Kenneth Street, Culbertson Avenue, Beacon Street, and North Main Street. It consists of 252 structures on , with the most notable buildings from the years 1880 to 1949. The earliest building, a former farmhouse at 333 Walnut Avenue, dates from 1840. The Academy Hill Historic District is