Nuremberg, Germany’s Historischer Kunstbunker (Historic Art Bunker) is a preserved bunker where the Nazis once kept stolen art and artifacts.

The Nazis expected to win World War II quickly, based on their results in Poland. When that didn’t happen, one of the many underground beer cellars was converted into storage for priceless artwork from both Germany and conquered nations. They added bomb-proof doors and climate control to ensure that artwork would survive bombings.

Although empty now, the catalogued collection included the orb and sceptre of the Viennese government, a carved altar from a church in Poland, and much more.