Some lovely roads and scenery in Luxembourg and nearby Germany. And everyone who's anyone has a photo of the castle in Vianden taken from the town. Lots of hotels and restaurants in Vianden too. I've stayed in a couple - Hotel Heintz on the main drag into Vianden, and Hotel Petry alongside the river. Heintz has the holy grail of all UKGSers, garage parking for bikes. (Though heaven help you if you want to leave before the Belgians who arrived after you and have blocked you in!)