Like a fish in water – that’s how the International Smart Cities Network (ISCN) “swam” through the annual Smart City Expo in Barcelona, perhaps the world’s biggest event on urban digitalization with way over 20,000 attendees and 1000+ exhibitors. The ISCN shared keynotes on comparing German and international smart city projects, organized a little "Meet the German Cities" session, and brought back many impressions and contacts for its network in Germany and the world over.