Nazis

An empty bookshelf commemorates the books which were lost during the infamous event

One of Warsaw's coolest malls was once a center for anti-Nazi resistance activity.

A symbolic cemetery in a suburban square marks the birthplace of Poland's WWII resistance movement.

One of the best-preserved pieces of DDR propaganda in Berlin.

Early Nazi prison for political prisoners.

A 16th-century fortress that was a Nazi-era prison and execution site, now a silent memorial.

A preserved Nazi munitions factory hidden in the forest, now a quiet memorial to those who once labored and suffered there.

The Cold War remnants of a nuclear missile launch site in the Northamptonshire countryside.

Under the streets of La Rochelle, a former wartime bunker holds some surprising secrets.

Former Gestapo prison turned memorial museum.

A haunting memorial to those who lost their lives to the Nazi regime lies hidden in the woods.

The gnarled remains of an exploded German bunker from World War II sit along a breathtaking fjord.

An extensive network of secret tunnels was created for the Nazi project "Riese."

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.