Schloss Reinhartshausen has the standard five-star amenities - luxury suites, spa, pool, three restaurants, and world-class cuisine. But it's its rich history and 200-acre vineyard that attracts the truly discerning traveler.

Bought by Prussia's Princess Marianne in 1855 and formerly the property of the medieval knights of Erbach, the Schloss Reinhartshausen is a restored castle that now offers guests accommodations worthy of royalty, as well as legendary wines. The Rhine itself is dotted with innumerable, unforgettable castles.

The vineyard is the birthplace of some of the world's most revered Rieslings, and the hotel keeps its cellars open to the public. Sit in on a culinary wine tasting and learn to how to harmonize food and wine. Head out with your partner after dark and take a torch-led tour of the vineyard under the moonlight. Or boat over to the hotel's private Mariannenaue Island, and taste the historic wines of one of Germany's nature reserves.