The Neckar River unites beauty and historic resonance as it flows toward the Rhine through the state of Baden-Württemberg, eventually reaching Heidelberg's graceful baroque towers and the majestic ruins of its red sandstone castle. Much of this route follows the west-east course of the Burgenstrasse (Castle Road), which stretches nearly 1,000 km (621 mi) from Mannheim to Prague, taking in some 70 castles and palaces along the way. Every town or bend in the river seems to have its guardian castle, sometimes in ruins but often revived as a museum or hotel. Off the main road, quiet side valleys and little towns slumber in leafy peace.
Photo: Olga Shelego/Shutterstock
Visit the Travel Talk forums for help on planning your trip