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
Germantown White House center for the Germantown White House landscape. Germantown White House The Germantown White House (formerly known as the Deshler–Morris House) is a historic mansion in the Germantown section of Philadelphia, Pennsylvania. It is the oldest surviving presidential residence, having twice housed George Washington during his presidency. The house takes its former name from its first and last owners: David Deshler, who built it beginning in 1752; and Elliston P. Morris, who donated it to the National Park Service in 1948. Deshler, a merchant, bought a lot from George and Anna Bringhurst in 1751–52, and constructed a four-room summer cottage. Twenty