Northern Rhineland; Cologne's iconic Dom has twin towers that might as well be exclamation marks after the word 'welcome'. Flowing behind the cathedral, the Rhine provides a vital link for some of the region's highlights – Düsseldorf, with its great nightlife, architecture and shopping; and Bonn, the former capital, which hums to Beethoven. Away from the river, Aachen still echoes to the beat of the Holy Roman Empire and Charlemagne.
Southern Rhineland; In this enchanting corner of Germany, the finer things in life take pride of place: good food, great wine, glorious walking and cycling, and exceptional art everywhere, from magnificent museums to quirky street sculptures.
These are the top experiences and sights in Hesse, North Rhine-Westphalia, Rhineland-Palatinate and Saarland, according to Lonely Planet.