Organized by the German Ministry for Education and Research, Science Year 2015 is dedicated to the topic “City of the Future.” For many people, cities are the center of their lives and their everyday experiences; where people work, relax, learn and participate in cultural activities. Cities are also where issues critical to society’s future make themselves felt: good jobs, climate protection, sustainable transportation, health, immigration and demographic change, to name but a few. They are also where responses to these challenges are being rethought and reworked.