National Historic Landmark district

C9454 concept

A National Historic Landmark district is a geographically defined area recognized by the U.S. federal government for containing a concentration of buildings, structures, sites, or landscapes that collectively possess exceptional value in illustrating or interpreting the heritage of the United States.

Observed surface forms (2)

  • National Historic Landmark District ×4
  • national historic landmark district ×1

Instances (6)