Seen from above, Karlsruhe looks like an open fan. Thirty-two avenues radiate out from the castle tower, like the veins of a giant leaf. This striking layout dates back to 1715, the year Margrave Charles III William of Baden-Durlach decided to build his residence deep in the forest, far from the medieval town walls. River boats dock at Maxau, on the bank of the Rhine, about ten kilometres west of the city centre. A short coach ride is all it takes to reach this Baden city, where Enlightenment urban planning can still be read in every sightline.

The Castle and Its Fan of Greenery

Everything radiates from the castle. Its pale yellow façade closes off the view down every avenue, so it can be glimpsed from nearly anywhere in the city. The building today houses the Badisches Landesmuseum, devoted to the history of the Baden region, from antiquity to the Ottoman collections brought back by Margrave Louis William. The central tower can be climbed to take in the geometry of the city at a single glance, with the wooded hills to the south as a backdrop on a clear day. Behind the palace stretches a vast public garden where residents picnic on the lawns, just steps from the botanical garden and its nineteenth-century greenhouses.

The Market Square and Its Pyramid

Following the main axis south leads to the Marktplatz, lined with neoclassical buildings by Friedrich Weinbrenner. In the middle of the square stands a red sandstone pyramid that has become Karlsruhe's emblem: it marks the founder's tomb. The surrounding pedestrian streets line up shops, cafés, and pastry shops where visitors can try a slice of Black Forest cake in its region of origin. Karlsruhe is also nicknamed "the city of law," since both the Federal Constitutional Court and the Federal Court of Justice are based here.

The ZKM, Art in the Digital Age

Inside a former munitions factory with the air of an industrial cathedral, the ZKM, the Centre for Art and Media, explores the ties between creativity and technology. Interactive installations, vintage video games, sound works: the visit surprises newcomers and enthusiasts alike. It's one of the most distinctive places of its kind in Germany, and it alone is worth the detour for many travellers curious to see where the art of tomorrow is being invented.

Durlach, the City's Ancestor

A tram links downtown to Durlach, the original settlement of the margraves, older than Karlsruhe itself. Its cobbled lanes, its square lined with half-timbered houses, and its village atmosphere stand in contrast to the strict geometry of the fan-shaped layout. From there, the Turmberg funicular, in service since 1888, climbs to a panoramic tower overlooking the Rhine valley. The view reaches as far as the first foothills of the Black Forest.

Quick Reference

The tram network ranks among the most efficient in Europe: the city invented the tram-train model, which runs on both city streets and regional rail lines. Several cruise itineraries also offer excursions to Baden-Baden, with its thermal spas and Belle Époque architecture, or to the villages of the Black Forest, with their broad-roofed farmhouses and clockmakers' workshops.

Before Heading Back Aboard

Karlsruhe isn't trying to dazzle anyone. Instead, it offers a lesson in harmony: a city conceived in a single stroke, where getting around never means getting lost, between a palace, a pyramid, and digital art laboratories. Heading back to the Rhine, thoughts return to the margrave who dreamed of order and light. Three centuries later, his fan is still opening onto the valley, and there are plenty of folds left to explore.