I was remembering in these days about a period when I was abroad and how was the politic scene at Europe. Before the 90's the Europe was basically

divided into Oriental Europe (Communist) and Occidental Europe. We spent 5 days at Budapest, Hungary capital, before we go to Prague. In that time,

even with the politics changes happened, dissolving the communist regime, many countries of Oriental Europe were still reflecting the long period

under this time. A culture like this can't be changed from one day to another. Those changes are just felt from generation to another.
Well, we were visiting the Hungary Parliament Building, also knew as The House of Nations. Built in 1906, along the Danube river margin and where laws

and decisions about the Hungarian nation are taken. Indeed in the Second Great War the Hungarian Parliament was much more than this. Important

documents of the Nazism were kept in its basement. I had an opportunity to work with someone whose Grandfather's was from the SS (Hitler Secret

Service Police) and one of his attributions was to kept those documents safe.
It’s said about the existence of a big secret tunnel, still unknown even for the Hungary government, with its entrance in the parliament basement,

crossing under the Danube
, passing by the Fisherman’s Bastion to the Buda's Castle (Budas Vár). This tunnel were made for, if was necessary, remove those documents, as the

nazis officers, when they were in dangerous.
There won't know if this tunnel was used by the Nazis some day, but is still believed that in the Cold War CIA and KGB agents used this tunnel.