The Mahn- und Gedenkstätte Langenstein-Zwieberge commemorates the thousands of prisoners who were forced to dig tunnels in the mountains under inhuman conditions.
To this day, the memorial's work is largely influenced by the internationality of the prisoners. Their descendants have come together to form a group which is probably unique in Germany, the international "Gruppe der zweiten Generation" (second generation group). The group is deeply involved in various aspects of the commemorative activities.