"The protective water". Why are our cities located by the water, and why have they been built on marshland and in bays? Today, Katarina Dunér talks about water that both protects and opens cities to connections far beyond borders. About the contacts with Amsterdam, which was once Europe's New York, about the Dutch who left their mark on both Stockholm, Copenhagen, Gothenburg and Kristianstad. It will be a breathtaking journey over these cities and down over the model city of Sabbionetta and to Venice in Italy to finally return to Stockholm, the Venice of the Nordics.