The Research Centre and Museum have been based at Schloss Monrepos for more than 20 years. Both have extended their activity radius greatly since 1986, making an expansion of the building and renewal of the exhibition long overdue. This problem was addressed from November 2010 until July 2014, by means of the “Konjunkturpaket II” programme for economic stimulus and with the support of the Leibniz-Gemeinschaft and the Town and District administrations of Neuwied.