For many it is the eighth wonder of the world: the Amber Room. Frederick I gave it to the Russian tsar in 1716, in 1941 the Germans stole it and brought it to Konigsberg, today's Kaliningrad. At the end of the war, the Amber Room disappeared without a trace - the starting signal for the greatest treasure hunt of the 20th century. For many years, the Soviet secret police and the Stasi directed the search. Finally, in 2002, a German company financed a replica that can be seen today in St. Petersburg's Summer Palace. But the search for the original continues.