10. Heidelberg, Germany
With its red-roofed old town and riverside castle, Heidelberg is one of Germany’s most romantic towns. It’s a university town with a youthful spirit, but also steeped in history and charm. A walk along the Philosopher’s Path offers unforgettable views.
- Tour the hilltop Heidelberg Castle
- Cross the picturesque Old Bridge over the Neckar
- Explore cozy bookstores and beer gardens