FILE – This Oct.2010 file picture shows the Ksiaz Castle in , Poland. During World War II, Adolf Hitler began to build a system of long tunnels underneath the castle. According to Polish lore, a Nazi train loaded with gold, and weapons vanished into the mountain at the end of World War II, as the Germans fled the Soviet advance. Now two men claim they know the location of the mystery train and are demanding 10percent of its value in exchange for revealing its location. (AP Photo/str)