Zohus is where the cathedral is - this is something that is instilled in the very young in Cologne. But not everyone has visited the roof structure or watched the craftsmen in the cathedral workshop! This colorful picture book offers insights into the most hidden corners of the cathedral, from the Great Peter bell to the treasury, and brings cathedral fans aged two and up closer to this impressive World Heritage site. Playfully and with a cheeky style, Saskia Gaymann introduces first words related to Cologne and its beloved landmark.