Wikipedia
Ostlandkreuz
Ostlandkreuz (German for "Eastern Lands Cross") or Kreuz des deutschen Ostens ("Cross of the German East") is the name of memorial crosses in Germany remembering the expulsion of Germans after World War II from the former Sudetenland areas of Czechoslovakia, from the so-called " Recovered Territories" of Poland and the Soviet part of the former Province of East Prussia. While most of these crosses stand in cemeteries, some are erected as landmarks on mountains.