Uniworld Boutique River Cruises offers a 10-day "Jewels of the Nile" itinerary that includes a guided tour of Petra, a UNESCO World Heritage Site.

The Damnoen Saduak Floating Market is a popular tourist destination known for its colorful boats and vendors selling a variety of goods, including fresh produce, souvenirs, and local delicacies.

Viking River Cruises offers a 12-day "Grand European Tour" itinerary that includes a guided tour of the Hermitage Museum, one of the world's largest and most comprehensive art museums.

Heidelberg Castle is a ruined castle in Heidelberg, Germany, that is a popular tourist destination and a symbol of the city. It was built in the 13th century and served as the residence of the Electors of the Palatinate.

Tauck River Cruises offers a 12-day "Treasures of the Aegean" itinerary that includes a guided tour of Ephesus, an ancient Greek city that was once one of the most important commercial centers in the Mediterranean.

Burgundy is a famous wine region in France known for its red and white wines. It is located in the eastern part of the country and is a popular destination for wine enthusiasts.

Pandaw River Expeditions offers a 10-day "Treasures of the Mekong" itinerary that includes a guided tour of Angkor, a UNESCO World Heritage Site and one of the most important archaeological sites in Southeast Asia.

The Vienna State Opera is a world-renowned opera house in Vienna, Austria. It is one of the most important opera houses in the world and a popular destination for opera lovers.

AmaWaterways offers a 7-day "Romantic Rhine" itinerary that includes a guided tour of the Keukenhof Gardens, a world-famous flower garden located in Lisse, Netherlands.

Buda Castle is a historic castle and palace complex in Budapest, Hungary. It is located on Castle Hill and is a popular tourist destination.

Viking River Cruises offers a 12-day "Pharaohs & Pyramids" itinerary that includes a guided tour of Luxor, an ancient Egyptian city that was once the capital of the New Kingdom.

Sanssouci Palace is a UNESCO World Heritage Site and one of the most popular tourist attractions in Potsdam, Germany. It was built in the 18th century as a summer palace for Frederick the Great, King of Prussia.

Viking River Cruises offers a 10-day "Venice & the Jewels of the Adriatic" itinerary that includes a guided tour of Rome, the capital of Italy and a popular tourist destination.

The Dom Luís I Bridge is a double-deck metal arch bridge that spans the Douro River in Porto, Portugal. It is a UNESCO World Heritage Site and a popular tourist destination.

Uniworld Boutique River Cruises offers a 10-day "Aegean Odyssey" itinerary that includes a guided tour of Athens, the capital of Greece and a popular tourist destination.