Now to the heart of the matter: Reporter Petra Heissen risks a jump from an airplane.

The Goethe-Institut’s #180sec short video series, which explores different cities around the world, visits the streets of Cologne. Here, local inline skater Matwej explains why it's no longer possible to skate on the square in front of the world-famous Kölner Dom (Cologne Cathedral), and where the skaters go now.