Day 1 — Altstadt-Nord: Cologne Cathedral and the first views of the Rhine
🚶 Start at Cologne Cathedral (Kölner Dom). A Gothic giant with a forest of flying buttresses and stained glass restores your sense of scale: up close you feel not only its height but also the “stone music” of its details. Step out onto Domplatte square, walk around the cathedral’s perimeter, and stop by the south façade, where the light beautifully “glides” over the stone. Then head to the steps by the Rhine: water, bridge arches, and the rumble of trains on the Hohenzollern Bridge instantly create a contrast between the Middle Ages and the motion of the 21st century. Finish with a gentle stroll along the riverfront toward Fischmarkt with its pastel gables.