WASHINGTON, D.C.- The U.S. Supreme Court let stand a lower ruling today that allows the U.S. Army to keep four watercolors painted by Adolf Hitler. The artwork was seized in Germany after World War Two. A challenge by relatives of late German photographer Heinrich Hoffmann Senior was turned aside by justices. The family sought either the return of the paintings as well as two and a-half million photographs or millions of dollars in damages. The action appears to lay to rest a battle involving the government, Hoffmann relatives and art investor Billy F. Price of Houston -- who bought rights to the works. U.S. forces discovered the artwork in 1945 in a German castle where Hoffmann had stored them during the war. Hoffmann's family contended the photographer was a victim of wartime art pillaging. The Army keeps the paintings in government storage in Alexandria, Virginia.