“Tintin” turns 90 this week. This cartoon character (created by the Belgian cartoonist Hergé), once came to Geneva and Nyon in an adventure called “The Calculus Affair” (in French, “L’affaire Tournesol”). In this adventure, Tintin travelled to Nyon in search of Professor Calculus; you can still recognise today the route he took on the lake road and see […]