The Institut Radiumforschung (Institute for Radium Research of the Austrian Academy of Sciences), in Vienna is the first Historic Site of the European Physical Society in Austria. In a ceremony on 28 May 2015, a commemorative plaque was unveiled by Luisa Cifarelli, Chair of the EPS Historic Site Committee and former President of EPS, and Anton Zeilinger, the President of the Austrian Academy of Sciences, in front of the building in Boltzmanngasse 3, which was originally constructed for the Institute for Radium Research.