In the 1820s, privately owned Rheinstein, 6km downriver from Bingen, became the first Rhine castle to be converted – by Prussian royalty (a branch of the Hohenzollerns) – into a romantic summer residence complete with turrets and battlements. Today, the neo-Gothic interior is furnished more-or-less as it was over a century ago. Highlights include a tiny chapel, the Rittersaal (Knights’ hall) and 14th- to 19th-century stained-glass windows brought from Cologne and Düsseldorf churches. A path leads from parking places along the B9.
Also here are two apartments for rent (€125 and €175; minimum stay two nights), and a castle tavern.