2010 Most Endangered Places for Washington, DC Click here to for the 2010 list. Media DC Metrocentric Fox Channel 5 ABC Channel 7 MSNBC Beginning in 1996, the DC Preservation League has announced annually a list of Most Endangered Places to draw attention to Washington, DC’s, historically, culturally and architecturally significant places that may be threatened with ill-advised alteration or demolition through neglect or abandonment. DCPL solicits nominations for its annual list from individuals and organizations throughout the city. DCPL’s education and landmarks committees evaluate the nominations and advise the Board of Trustees on their final selections. In many cases, a task force is created to raise awareness and develop possible preservation solutions for the endangered resource.