Last week's theft of the infamous sign over the Auschwitz Nazi death camp shocked millions.
And while the 16ft-long ironwork has since been recovered, the crime highlights the perverse hunger for Third Reich memorabilia that still exists today.
Police believe the sign, which bears the words Arbeit Macht Frei - "work sets you free" - and under which 1.1million people marched to their deaths, was stolen for the twisted pleasure of a private collector.
And had it not been found, it would have been just a drop in the ocean of Nazi memorabilia traded every year.
Last year British Holocaust denier David Irving set up a website selling Nazi memorabilia, which he claimed included a piece of bone from Hitler's body and strands of his hair.