Begin this three-hour excursion in Neupfarrplatz, the city center of Regensburg’s Old Town, before taking a short walk to the Princely House of Thurn and Taxis. The family estate is difficult to miss: at over 1,000 years old, the mansion boasts over 500 rooms complete with chandeliers, gold leafing, incredible art and architectural touches to make it truly a sight to behold. The palace has an incredible history and stands as a tale of revival, endurance and baroque style.  What’s even more spectacular? The palace has a long list of celebrities who have stayed within its walls: Mick Jagger, Michael Jackson, Steve Martin, Plácido Domingo and more. These walls may not be able to talk, but if they could they would surely say, “Come see us for yourself!”

Here is your opportunity to see German engineering, famous the world over, in operation as you tour the state-of-the-art BMW factory on the outskirts of Regensburg. About a thousand cars a day roll off the assembly line here, many of them in the BMW 3 series. You’ll see the fascinating production process from beginning to end, starting with rolls of sheet metal that are stamped out into body parts and continuing as the body is built and the various other elements are robotically assembled. You’ll follow a car into the finishing department to see it painted, polished and have the final touch applied—the BMW roundel.

NOTE: If the tour lands on a day when the BMW factory is closed, we will visit the Audi factory instead. The Audi production line is closed on weekends, so if your visit is scheduled for a weekend, you will see the Audi museum instead

Did you know that Regensburg residents raised silkworms at one time? It’s just one of the unusual aspects of the city that you’ll discover on a hike that begins at the ship’s dock. Meet up with your guide and head out along the eastern gate road (that eastern gate was part of the old Roman walls), crossing the river to the narrow streets of Stadtamhof, an island in the Danube that is part of Regensburg’s UNESCO-honored medieval complex. Pause atop another bridge to take a look at boats cruising through the lock and then begin your ascent of Holy Trinity Hill; you’ll have a great view of old Regensburg from Windsor Heights, and you’ll pass some of the beautiful mansions that overlook the city—including the buildings that housed the silk plantation begun by Ludwig I in the early 19th century. Your route continues along the heights, offering views of the entire region: fields, woods, even the Bavarian forest in the far distance. After a brief rest, you’ll head back down to the town and the ship.

Don your safety goggles and discover how BMW builds a thousand cars a day at their Regensburg plant. Robots and humans work together to assemble a single car—which has about 550 parts—in less than 40 hours (it used to take weeks). The place is huge, and though robots do a lot of the work, a great deal still needs to be done by the human hand. You get to see all aspects of the process, from stamping out metal parts to painting, in a tour tailored to young visitors.

If you’d rather see some of historic Regensburg, you can experience it from the viewpoint of its modern-day teenagers, who will show you where to shop, stop for a bite to eat at a thousand-year-old sausage stand and find the best ice cream. They’ll also point out all the must-see sights—the cathedral, the medieval bridge and the house where Oskar Schindler lived.

Germany’s oldest restaurant, Alte Wurstkuche, has been serving sausages to Regensburg’s residents for almost 900 years—which tells you just how much Regensburg loves sausages. Delve into the craft and art of this delicious regional specialty after a tour of the town’s medieval core (presided over by the splendid cathedral) that ends at the Regensburg Ratskeller. It’s housed in part of the Old Town Hall, so it’s a historic site in its own right, but it’s also home to a family-owned shop where Bavaria’s beloved Weisswürste are made—weiss, meaning white (for veal), and würst, meaning sausage. Roll up your sleeves and help create some white sausage under the supervision of the shop’s master butcher, who shares the traditional recipe with you. Once you’ve weighed and mixed the ingredients and stuffed the casings, you’ll watch them cook to delicious perfection. Then comes the best part: eating your own hand-made sausages with local Händlmaier mustard and a fresh pretzel—and, if you want a truly traditional Regensburg experience in the heart of Old Town, you’ll sip a local beer with it.

The skyline of Passau is dominated by two buildings that owe their existence to the prince-bishops who ruled the city until 1803: the great fortress looming on a hill above the three rivers, home to the bishops until the 17th century, and the green onion domes of St. Stephan’s Cathedral. As you walk through the cobblestone streets toward those green onion domes, you’ll realize that Passau retains the layout of the medieval town. However, many of the wooden medieval buildings burned to the ground in the 17th century, and the prince-bishops imported Italian artists to build a new cathedral and a magnificent new residence for the bishops themselves. As a result, these splendid structures flaunt Italian baroque and rococo style and ornamentation, complete with opulent gilding and wonderful frescoes. Your guide will introduce you to some of the architectural highlights—the rococo stairways of the New Residence; the cathedral; and the Town Hall, which boasts a magnificent atrium adorned by large paintings by Ferdinand Wagner—and make sure you get a close-up view of the point where the three rivers meet.

Put on your hiking boots, grab a windbreaker and a bottle of water, and head out with a local hiking guide and nature expert to explore the banks of the Ilz River. This small but rushing tributary of the Danube originates deep in the Bavarian Forest, near the Czech border, and is just 40 miles (65 kilometers) long. Its upper stretch is a premier whitewater rafting location, but you’ll be hiking along the lower, serene end of the river. Your starting point is Hals-Hochstein, where you’ll pick up a nature trail that follows a curve of the river and then climbs a steep hill, where you have a great view of the river and woodlands. You will cross the river repeatedly, once by way of a dam and again toward the end of your four-mile (6.5-kilometer) hike, as you loop back to the Hals.

Get into the water this morning: The Ilz River is a great place to paddle a canoe or a kayak—or you could even try some stand-up paddleboarding. It’s splashy fun! Later in the day, you can mount a bike and join a group for a river-hugging ride that starts at the bike ferry across the Danube. You’ll pedal through the lovely countryside between Engelhartszell and Passau—orchards and meadows glide past, along with the occasional castle, charming village or picturesque ruin. Your bike guide will have a surprise waiting for you somewhere along the route, too!

Discover the true meaning of farm-to-table! Roll through the lush hills of lower Bavaria--with a stop to at a farm store to pick up cooking supplies--to serene and bountiful Hofgut Hafnerleiten. This rural haven, a compound of guest houses, gardens, orchards and a state-of-the-art kitchen, is a dream come true for your hosts today, Erwin and Anja Rückerl. “Hofgut” means big farm, and this big farm began as a rural cooking school 15 years ago. Erwin Rückerl is an award-winning chef who abandoned a successful restaurant career in Munich to live in harmony with nature, growing the food he cooks. Don an apron and help him prepare a delectable three-course meal of Bavarian specialties; naturally, the menu varies with the season and the fruits of the farm--you might make dumplings or schnitzel or apple strudel--and then dine on the patio with a glorious view of the countryside or inside in the cozy dining room. One thing is always true though: good food, good wine and beer (or a yummy farm-made non-alcoholic beverage), and good company make for the most memorable meals.

Set off on an invigorating bike ride from Engelhartszell to Passau, led by one of our certified wellness instructors. Wind your way through the lovely countryside, along the Danube’s right side, upstream into the picturesque Danube Valley. These particular landscapes are some of the most beautiful in all of Europe—characterized by expansive vineyards, tree-lined slopes, and castle-dotted hillsides—and seamlessly blend the region’s cultural, historical and natural components together. Make a pit stop halfway at an Austrian beer garden, where you can savor your choice of regional beer. Pedal onwards toward Passau, past more charming villages, meadows and orchards, rounding out your trip in Passau’s Old Town.

You’re invited to a private cocktail reception at Artstetten Castle with a member of the Habsburg royal family—a direct descendent of Archduke Franz Ferdinand and his wife Sophie. As a pivotal part of world history, Archduke Franz Ferdinand’s assassination in Sarajevo triggered WWI. The seven-towered castle, parts of which date back to the 13th-century, remains the private property of the Hohenberg family. It is the final resting place of the archduke and his wife, who are entombed in the family crypt, which you may explore. A museum within the castle walls is dedicated to Franz Ferdinand; you might be surprised to discover that the archduke, a stern military man if one judges him by his portrait, renounced his descendants’ claim to the Habsburg throne in order to marry for love.

Head outdoors to the beautiful Wachau Valley, one of Austria’s great nature habitats. Hike through vineyards high above the river with a nature expert who will guide you in a hunt for the treasures hiding in this habitat. Can you spot one of the orchid species that only grows here in the Wachau? How about the rare native feather grass? Glimpse a European green lizard basking on a stone terrace or a falcon soaring far overhead, but don’t forget to look out over the river and the valley; these views are so lovely, the memory will stay with you forever.

This excursion has it all! Join us and experience the sights, sounds and flavors of Vienna. Begin the tour with a walk to the iconic and colorful Hundertwasser House before enjoying a walking tour of Burgtheater, the Habsburg Winter Palace and the Fine Art Museum. Replenish with a rest and a bite of delicious Vienna sausages, famous canapes or delightful sweets from Vienna’s best confectionary, Altmann & Kühne. The outing continues with a taste of Viennese white wine, traditional dark bread, and local meats and cheeses before you board the bus to Prater Park, home to the best view of the city thanks to the Ferris Wheel. This is an excursion sure to leave your senses delighted.

Austria’s capital offers a unique blend of imperial traditions, stunning modern architecture and a treasure trove of historic artifacts housed in one of Europe’s most famous museums. See these sights, like the historic Giant Ferris Wheel, on a gorgeous panoramic drive through the city, before stopping in at the world-renowned Weltmuseum Wien, which hosts Austria’s largest collection of anthropological and archeological objects from Asia, Africa, Oceania and the Americas. Tour the ancient relics and other items such as the feathered headdress of Aztec emperor Moctezuma. If time allows, take a stroll through the nearby park to take in the local color.

Here’s a fun way to see Vienna: Head to Prater Park. Tweens and teens can zoom around the park on Segways, but there’s plenty for younger travelers to do too, including a ride on the Giant Ferris Wheel, built more than a century ago. Unlike American Ferris wheels, which have open seats, the carriages of the Riesenrad resemble miniature railroad cars. It’s one of the tallest wheels in the world, so you get a fabulous view of the city from the top. Back on the ground, you’ll encounter some mouthwatering classic Viennese sweets—because Vienna loves sweets!—by watching the famous Sacher torte being made at Café Demel, one of the city’s most elegant cafés, and sampling yummy Lilliput chocolates at a shop near St. Stephen’s Cathedral. Younger travelers can get a taste of Habsburg splendor at Schönbrunn Palace. At the Children’s Museum in the palace, girls may dress up in the ruffles and brocades of long ago, and boys can don imperial uniforms. Try on tricorns and powdered wigs, flirt with your fan, figure out how to set the table for an imperial banquet—it’s all fun, but it’s also a glimpse into a long-ago world of protocol and grandeur.

Perhaps the apex of baroque design in Vienna, Schönbrunn Palace’s gardens and structures form a perfectly integrated masterwork; it was Empress Maria Theresa’s favorite palace, and she made it the social and political center of her empire, beginning in 1740. Your visit today will concentrate on the rooms occupied by Emperor Franz Joseph and his empress, Elisabeth (known as Sissi, she was enormously popular in her day). Franz Joseph restored the state rooms to their rococo splendor, but his private rooms reflect his rather severe nature, making for an illuminating contrast.

This panoramic tour is a wonderful way to get an overview of the city if you have never been here before. It will carry you from Heroes’ Square, created in 1896 to honor the thousand-year anniversary of Hungary’s founding and its greatest historical figures, past some of the city’s most striking architectural sights—Dohány Street Synagogue, the Hungarian National Museum, the state opera house, St. Stephen’s Basilica and the truly stunning Parliament Building—to Castle Hill, which has been called the heart of the nation. The city of Buda began here, when King Béla built a strong keep in 1243 as a defense against Mongol invaders; a castle replaced the simple fortress, and over the centuries other castles replaced that one. The current castle is primarily 18th century; a museum dedicated to Budapest’s archaeological finds is housed there, and the Castle Hill district has been designated a UNESCO World Heritage Site. You’ll go inside the magnificent 700-year-old Matthias Church, named for one of Hungary’s greatest kings, and then wend your way on foot to the picturesque Fisherman’s Bastion, whose seven fairytale-like towers represent the seven tribes that originally settled the region. It offers a glorious view of the city and the Danube below.

Note: Visits to the interior of Matthias Church may not be possible on some weekends and Catholic holidays.

Get ready for a fun immersion in daily life in Budapest— your local guide will show you how to use the metro (one of the oldest in Europe) to easily reach all the city has to offer. Start with a visit to one of the city’s irresistible market halls. Stalls spill over with produce, sausages and meats, festoons of dried paprika, cheeses, and jars of honey, all of it authentically Hungarian. After you leave the market, stop for coffee and a sweet treat at Szamos Gourmet Palace, a combination pastry shop, café and chocolate maker in Vörösmarty Square. Marzipan is a favorite confection in Budapest, and Szamos has specialized in making it since the 1930s, so you might want to try some—but the shop’s truffle selection is equally irresistible. Refreshed, you’ll be ready to hop back on the tram for a visit to the gracious green spaces of Károlyi Garden, sometimes described as Budapest’s most charming small park. You’ll ramble along the boulevards and pass the Hungarian National Museum, truly getting the feel for this dynamic city, as you head back toward the ship.

Your ship sets sail from Budapest after your tour, cruising along the Danube Bend, which is lined with scenic towns—among them are the oldest settlements in the country—nestled at the foot of lovely wooded hills.

Imagine living underneath Budapest for 34 years in a secret abandoned hospital. That’s what one couple did, tending miles of echoing caverns lined with ghostly hospital beds, boxes of files, gas masks . . . gas masks? Yes, gas masks. The Hospital in the Rock began as a hospital during WWII, when Budapest was besieged, but it became a secret nuclear bomb shelter—and hospital/torture chamber for prisoners—during the Soviet era in the 1950s. It was so secret that once it was abandoned in 1970, a single couple continued to live here as caretakers, telling no one what they did. Explore these once-secret caves, seeing 70-year-old hospital equipment still in place, along with some 200 wax figures that stand in for the real people who worked on this site of heroism and horror. Why was this place such a dark secret for so many decades? Can you help unravel its mysteries?