An unassuming roadside motel that's a spiritual home to the blues. A crumbling Navajo trading post standing right by Monument Valley, and an old filling station that offered refuge to Black travelers during Jim Crow. Campsites — for crusading civil rights demonstrators in the 1960s — and ones that housed Chinese railway workers a century before.
These are among the most endangered historic sites in the U.S. right now, according to the National Trust for Historic Preservation. Every year, the organization issues a list of buildings and other places threatened by development, climate change or neglect.