16th Street World War I Memorial Trees
United States
The World War I 16th Street Memorial Trees, honoring the lives of District of Columbia residents killed in World War I, are located on 16th Street NW in Washington, D.C., between Alaska Avenue and Varnum Street. A gift to the city from the D.C. department of the American Legion, the memorial originally consisted of 507 trees and markers, one for each resident known to have perished during the war.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).