Budapest is one of Europe’s most regal and storied cities—and many of its most iconic sights can be seen right off the banks of the Danube. Your tour through this sprawling World Heritage city offers splendid views from historic Buda Castle of the twin cities on both banks of the river. You’ll also visit Fisherman’s Bastion and see the marvelous Royal Palace, St. Stephen’s Basilica, Heroes’ Square and much more. Later, explore this beautiful city’s Christmas Markets. As an alternative, you can hike to Castle Hill, walking along Fishermen’s Bastion and take in all the iconic sites of Budapest with an active exploration. (B, L, D)

The “City of Waltzes” offers a treasure trove of gems just waiting to be discovered. Join a tour showcasing its regal splendors, such as the majestic Opera House and the former Imperial Palace of the Habsburgs before concluding in Vienna’s historic city center. Afterwards, you’ll visit the Christmas Markets. If you prefer a more active adventure, then join a guided bike along the Danube River. During the afternoon, visit the Schönbrunn Palace with a giant sparkling Christmas tree. This market presents a glittering and stellar Christmas experience. Or cap the day off with “Vienna by Night” Christmas Markets at the beautifully decorated Town Hall (Rathaus), Vienna’s largest Christmas Market. (B,L,D)

High on a rocky outcrop lies the Melk Abbey, one of Europe’s most revered Baroque monasteries. Visit this magnificent Benedictine Abbey, which now houses a museum chronicling its history and a famous library with countless medieval manuscripts. Alternatively, go on a guided bike ride around Melk. During the evening, enjoy a scenic cruise through the Strudengau Valley. (B,L,D) 

Regensburg is one of Germany’s best preserved medieval cities, as well as a UNESCO World Heritage Site. Join a guided walking tour showcasing the city’s architectural highlights, including the Old Town Hall and the Porta Praetoria, before visiting the Old Town Christmas market. As an alternate option, sample some of Bavaria’s specialties—beer, sausage and pretzels. Or bike to the base of Walhalla where there is a neoclassical white marble temple inspired by the Parthenon in Athens. Later in the day, you’ll be treated to one of Bavaria’s most beautiful and romantic Christmas markets at Thurn and Taxis, where you can watch artisans make their unique arts and crafts. (B,L,D)

Enjoy a scenic morning cruise as the ship crosses the Continental Divide via the Main-Danube Canal to Nuremberg. Join a city tour of WWII highlights and then walk through Nuremberg’s cobblestone streets to the Imperial Castle and 900-year-old city ramparts. Alternatively, you can taste your way through the city with a Franconian specialties tour, which introduces you to bratwurst, rotbier (red beer) and lebkuchen (gingerbread). Later, you can visit Nuremberg’s Christkindlesmarkt, one of the world’s largest and most famous Christmas markets. (B,L,D) 

Disembark the ship and bid farewell to Nuremberg and prepare for your flight home. (B)