Platz des Unsichtbaren Mahnmals

To the visitor, the memorial is completely invisible – it only appears as a sign at the place, reading "Platz des Unsichtbaren Mahnmals".

In April 1990, art professor Jochen Gerz and several of his students began, in secrecy, to dig up cobblestones from the place in front of the Saarbrücken castle.

The underside of the stones were then engraved with the names of German Jewish cemeteries, and afterwards they were returned to the place, with the inscription facing downwards.

In August 1991, the idea was taken up by the city council of Saarbrücken, and it decided to implement it legally.

In the end, a total of 2146 location names of Jewish cemeteries, which had existed until their destruction by the Nazi regime in 1933, were engraved into the cobblestones, and again placed back into the fore court of the castle.