Amphitheater of the Unknown Soldier
Dedicated in May 1920 the Memorial Amphitheater at Arlington National Cemetery, near the center of the Cemetery is the home of the Tomb of the Unknowns where Unknown American Servicemembers from World War I, World War II, Korea and Vietnam are interred.
Designed by Thomas Hastings, the colonnaded building consists primarily of Vermont-quarried Danby marble. President Woodrow Wilson placed the cornerstone of Memorial Amphitheater on October 13, 1915. By Armistice Day on November 11, 1918, nearly all of the building's exterior was complete. Interior construction was completed in June 1919.