victim groups and commemorative activities, such as the Cologne artist Gunter Demnig's project "Stolpersteine" (Stumbling Blocks). Among the large, ongoing research undertakings are the history of the Holocaust, resistance, the Gestapo, the Nazi system of Gauleiter (district overseers), urban planning, public health policies and the Hitler Youth movement. The results of the research projects are published in a series of writings in book form, a workbook series, a series put out by the Information and Education Association, and the center's Internet page. The NS Documentation Center is a municipal institution and, since 2008, part of Cologne's city museums associations. So within the municipal administration, it is responsible for dealing with all subjects related to the city's Nazi past, including the visitor programs for former forced labourers, which the city has been running since 1989. The center has been the recipient of numerous awards, including the "special recommendation" of the 2000 Museum of the Year Award. Awards The NS Documentation Center of the City of Cologne has been awarded several times: European Museum of the Year Award 2000 (special appreciation) Cologne architecture prize () 2001 Architecture prize North Rhine-Westphalia () 2001 Invitation to the Congress in Dubrovnik: "The Best in Heritage. An Annual Presentation of the Best Museum and Heritage Projects" 2002 Andrea Riccardi Prize 2004 History Award 2006 of History Channel for the research project: Navajos and Edelweiss Pirates - Non-conformist Youth behavior in Cologne 1933 to 1945 () Prize for innovation in adult education () 2007 of the German Institute for Adult Education Freya Stephan Kühn Prize 2008 of the association of history teachers in North Rhine-Westphalia () In 2004 Elzbieta Adamski, Employee of the NS Documentation Center of the City of Cologne, received by the hands of the president of Poland, Aleksander Kwaśniewski, "for her extraordinary merits in the field of the development of German Polish relations" the Order of Merit of the Republic of Poland, one of the most valuable awards of the Polish state. For more than ten years now Elzbieta Adamski is in charge of the visit program for former forced labourers. Special exhibitions (selection) November 1988 to January 1989: Fate of the Jews in Cologne, 1918–1945 November 2002 to February 2003: Special Feature: Negroe. Black people in NS state Mai 2003 to November 2003: Pictures of a Foreign Town. Forced Labour in Cologne, 1929–1945 November 2003 to January 2004: Hans Calmeyer and saving Jews