Europe's Rivers & Castles -Nuremberg to Luxembourg

Nuremberg commands the imagination on two levels: as the glittering medieval city where Holy Roman Emperors held court, Albrecht Dürer was born, and craftsmen produced the first pocket watch — and as the site of the 20th century's darkest chapter, where Nazi rallies and subsequent war crimes trials left permanent marks on European history and conscience. The Kaiserburg castle crowning the hill above the perfectly preserved old town offers sweeping views of a cityscape that, despite wartime bombing, remains one of Germany's most beautiful. The Documentation Centre on the former Nazi Rally Grounds is essential, sobering history; the Christmas Market on the Hauptmarkt, held since 1628, is among Europe's finest. Visit May through October or December.

Bamberg, the 'Franconian Rome,' is a UNESCO World Heritage city whose medieval old town — seven hills, four Romanesque-Gothic cathedral towers, and an Old Town Hall balanced impossibly on an island in the Regnitz River — survived World War II entirely intact, a miracle of preservation unique in Germany. The city is equally celebrated for its extraordinary smoked beer, Rauchbier, a speciality brewed in family-owned breweries for centuries and best tasted in the old quarter's atmospheric taverns beside a plate of smoked meats. Spring and early summer are ideal for the surrounding Franconian countryside in bloom. Nuremberg is forty minutes by rail.

Würzburg, presiding over the Main River at the northern gateway of the Romantic Road, is Bavaria's most elegantly baroque city — its skyline commanded by the medieval Marienberg Fortress and its streets presided over by the magnificent Residenz, a UNESCO-listed princely palace whose frescoed Treppenhaus ceiling by Tiepolo is considered the largest fresco in the world. The surrounding Franconian wine country produces some of Germany's most distinctive Silvaner and Riesling, sold in the iconic bocksbeutel flask from cellars carved directly beneath the old city. Spring through autumn reveals the vine-clad hillsides in their most photogenic splendor; the historic Weinfest am Stein wine festival each September is a highlight of the Franconian calendar.

Perched at the confluence of the Main and Tauber rivers beneath the romantic ruins of a 12th-century count's castle, Wertheim is one of Franconia's most perfectly preserved medieval towns — a place where timber-framed houses lean over cobbled market squares and where the bone-dry Silvaner poured from the distinctive Bocksbeutel bottle defines the regional table. Day trips to baroque Würzburg, the medieval perfection of Rothenburg ob der Tauber, and the half-timbered town of Miltenberg complete the picture. September's wine harvest brings the Tauber Valley to its most golden.

Rüdesheim am Rhein, a jewel of the UNESCO-listed Upper Middle Rhine Valley, is where Germany's most storied wine river cuts through vine-terraced slopes and medieval castle ruins. The pedestrianised Drosselgasse laneway — beloved since the Romantic era — hums with wine taverns pouring the region's celebrated Rieslings, crisp and mineral from the slate soils. The Niederwald Monument surveys the river from the heights, reached by cable car above the vineyards. Day trips by boat unlock Bacharach, Boppard, and the legendary Lorelei rock. September's harvest festivals transform the entire valley into a convivial celebration of the vintage.

The Rhine Gorge, a UNESCO World Heritage site, is a stunning section of the Rhine River renowned for its historic castles and picturesque towns. Must-do experiences include savoring local Riesling wines and exploring the charming markets. The best season to visit is in late spring through early autumn when the vineyards are lush and the weather is delightful.

Lahnstein sits at the confluence of the Lahn and Rhine rivers in Germany's UNESCO-listed Rhine Gorge, overlooked by the fairy-tale Burg Lahneck castle and surrounded by steep, vine-covered hillsides. Must-dos include touring the castle's restored great hall, tasting mineral Rieslings from local wineries, and cruising the Rhine past the legendary Lorelei rock. May through October offers warm weather and the region's festive wine-harvest season.

The Reichsburg Cochem — a turreted fairy-tale castle presiding over a loop of the Moselle River — is among Germany's most photogenic medieval fortresses, its silhouette rising above terraced vineyards of ancient Riesling vines. The town below offers a charming ensemble of half-timbered houses, wine-cellar tastings, and cycle paths threading through valley landscapes that have barely changed in centuries. Arrive in September for the harvest festival, when the whole town smells of fermenting Riesling, or choose May for blossom-framed panoramas and long golden evenings on the riverside terraces.

Zell am Main is a quintessential Franconian wine village on the Main River near Würzburg, set among steep, terraced vineyards producing distinctive Silvaner wines in traditional flat-sided Bocksbeutel bottles. Must-dos include tasting local wines directly at village estates and visiting nearby Würzburg's UNESCO-listed Residenz palace. May through October provides warm weather for vineyard exploration, with October's grape harvest adding seasonal wine festivities.

Trier is Germany's oldest city and once the northern capital of the Western Roman Empire, its incomparable UNESCO-listed ensemble of monuments — the blackened Porta Nigra gate, the vast Imperial Baths, the Amphitheater, and a Roman bridge still carrying traffic across the Moselle — more than justifying the title 'Rome of the North.' The birthplace of Karl Marx and a gateway to the Moselle wine region's elegant Riesling estates, Trier rewards a long visit with layers of history spanning two millennia within an effortlessly walkable historic center. The summer months from May to September are ideal, when Moselle Valley vineyard terraces gleam in full-leafed splendor.

Luxembourg is Europe's most dramatically situated small capital, perched above deep river gorges and fortified with UNESCO-listed ramparts including seventeen kilometres of underground casemates. Must-dos include exploring the Bock Casemates, dining on Judd mat Gaardebounen, and wandering the charming Grund quarter in the valley below. May through October offers the best weather for enjoying the city's extraordinary terrace views and outdoor cafe culture.