The U3 line takes you on a circular journey through Hamburg, offering a kaleidoscopic tour that presents images as if in a daze. Each stop is highlighted architecturally and historically. The transformation that the stops and their surroundings have undergone over the past 102 years is documented through photographs and testimonies from eyewitnesses. Each stop serves as the starting point for a 42-minute city walk, illustrated with historical and contemporary photos, complemented by the best dining tips and cultural highlights. An interview with originals or celebrities is conducted at each stop - always lasting 42 minutes, the same duration as a ride on the U3.