Here is a short video about Project "Riese" in Poland. This was one of the largest construction works of the Third Reich. Started late in the war (Fall 1943) and never completed, the real purpose of the Riese bunkers still remains a mystery today. We brought some of the first tour groups to these bunkers when they opened up in the late '90s. Find out more details about Project Riese and how to get there on our World War II Tours to Poland at our website here: worldwar2tours.com #alpventures25 #alpventures #ww2tours #travelpoland #projectriese