The Inn at Montchanin Village, a 19th century hamlet in the heart of the Brandywine Valley, was ranked the World’s Best Hotel for $250 or less by Travel & Leisure magazine two years ago. Delight the in-laws with your knowledge of history. You’re booking them in a former Winterthur estate named for Alexandrine de Montchanin, grandmother of the founder of the DuPont Gunpowder Company. The folks will discover a magnificent spa, richly furnished rooms, gas fireplaces, luxurious private baths and private, landscaped courtyards that burst with flowers. A big plus is Krazy Kat’s, the restaurant at the village, which offers fine, eclectic dining.