Round holes in the houses. Parking spaces that only accommodate a toy car, but are meant for a giant. And pants that are actually a road: all of this can be found in just one place: in the heart of Germany. More precisely, in Erfurt. The capital of Thuringia is rightly famous for the buildings that have shaped the old town since the Middle Ages. But it's not just the numerous churches and the famous Krämer Bridge that hold exciting secrets. For those who walk through Erfurt with curiosity and attention, traces of the city's history reveal themselves at many other corners. The authors Eva-Maria Bast, Kerstin Hohlfeld, and Elena de F. Oliveira have done just that and embarked on a journey through time and space. They were accompanied by numerous city experts who have retained their eye for the extraordinary.