In 2007, an abandoned photo album revealed the chilling normality of life at the Nazis’ most notorious concentration camp, Auschwitz.
Germany's education minister has branded the ban on the small brass memorial plaques a "scandal".
The suspect is alleged to have been an accessory to murder at the Stalag 326 camp, where tens of thousands of Soviet PoWs died.
The late-baroque Portrait of a Lady was lost for 80 years until it was spotted in photographs of a house for sale near Buenos Aires.
Investigators believe they have identified an arsonist who attacked a Jewish community centre in Munich in 1970, killing seven people.
Harry St Clair Dean was eventually imprisoned in Nazi Germany for his actions.
A remarkably well-preserved motorcycle and identification tags were found alongside the bodies.
The opening follows years of controversy about what to do with the 17th-Century former inn, where the Nazi dictator was born.
During World War Two, whilst Norway was occupied by Nazi Germany, a group of Norwegian sailors set up a base on the Shetland Islands and began aiding their country’s resistance.
