America's 11 Most Endangered Historic Places
Since 1988, the National Trust for Historic Preservation has released a list of America's 11 Most Endangered Historic Places, intended to raise awareness about the threats facing some of the nation's greatest treasures. According to the trust, the list - which has identified more than 230 sites - has been so successful in encouraging support for preservation efforts that only a handful of sites have been lost. Explore past 11 Most listings here.