"There are so many tourists coming to Berlin who want to know more about what was going on here during the war," said Wieland Giebel, who is also part of the Historiale organization that created and operates the exhibit, which opened Oct. 28. "One of the most-asked questions we get is: Where was Hitler's bunker?" He added that the idea was to give people a sense of what the bunker was like during those final days of the Nazi regime.