Arrive in Vienna and transfer to your hotel.

The “City of Waltzes” offers a treasure trove of gems just waiting to be discovered on your city tour. See the majestic Opera House and the former Imperial Palace of the Habsburgs before concluding in Vienna's historic city center. (B)

Excursions:

• “Imperial Vienna” tour

Board the ship for your Gems of Southeast Europe cruise. (D)

Excursions:

• Transfer to Budapest

Enjoy an excursion to Pécs and see Szechenyi Square, the Christian Necropolis – a UNESCO World Heritage Site – and St. Peter's Basilica with its underground burial chambers. For a more active adventure, delight in a guided bike ride along the Danube River. For wine connoisseurs, you'll visit the Szekszárd wine region, one of the oldest red-wine-growing areas in Hungary, established more than 2,000 years ago. (B/L/D)

Excursions:

• Pecs Excursion OR Guided Bike Ride Along the Danube OR Szekszárd wine tasting

Explore Novi Sad, a city rich in tradition and culture, on a full-day walking tour. Begin your tour at the Dunavski (Danube) Park; stroll through Stari Grad, the old town center; and explore Liberty Square, which is dominated by the Old Town Hall. You will also have the option to visit the Petrovaradin Fortress. Or enjoy your morning in Vukovar on a guided city tour where you will have a chance to visit Eltz Manor House, Vukovar's famous water tower, and the Vucedol Museum. Alternatively, you may explore Vukovar on an active bike tour. In the afternoon, travel to Ilok, situated in the easternmost part of Croatia, to enjoy a wine tasting and tour in the Old Cellars of Ilok, famous for their Grasevina, Traminac and Frankovka wines. (B/L/D)

Excursions:

• Full-day Novi Sad Tour OR Highlights of Vukovar OR Vukovar Guided Bike Tour
• Croatian wine tasting

Explore Serbia's capital, Belgrade, on a city tour, which includes the Nikola Tesla Museum, encompassing the world-renowned inventor's life and inventions, as well as the Kalemegdan Fortress and the Serbian Orthodox Temple of St. Sava. Alternatively, you can enjoy a taste of the region by sampling wine and snacks at the Podrum Panajotovic Wine Cellar, where old traditions and excellent wine are preserved 10 meters below the streets of Belgrade. For those wishing for a more active adventure, join a guided bike tour or hike to Belgrade Fortress. (B/L/D)

Excursions:

• “The City by Two Rivers” tour OR Belgrade Fortress hike OR Podrum Panajotović wine tasting OR Belgrade bike tour

Visit Golubac Fortress – one of the best-preserved medieval fortresses in Europe – before cruising through the Iron Gates – one of Europe's most awe-inspiring natural wonders. The Danube narrows as it winds through a series of magnificent gorges between the Carpathian and Balkan mountains, forming a natural border between Serbia and Romania. The ancient King Decebalus, the last king of Dacia, is proudly carved into the mountainside and always captivates travelers. (B/L/D)

Excursions:

• Golubac Fortress visit
• Scenic Cruising – The Iron Gates

Explore Vidin, one of Bulgaria's oldest cities, and surrounding areas with a choice of excursions. Discover Baba Vida Fortress, the largest preserved medieval castle in Bulgaria. Alternatively, visit a local home for a demonstration of traditional Bulgarian yogurt and Banitsa, a pastry you will also get to make. You also have the choice to bike through Vidin and to the castle. Or enjoy a wine tasting at a local boutique winery just outside of Vidin. (B/L/D)

Excursions:

• Baba Vida Fortress and Vidin Walking Tour OR Calafat wine tasting OR Banitsa Pastry and Yogurt making OR Vidin bike tour OR Dos Alamos wine tasting

Visit Bulgaria's ancient capital, Veliko Tarnovo, with its medieval fortress and multiple orthodox temples. You can opt instead to go to Rousse, known for its 19th- and 20th-century Neo-Baroque and Neo-Rococo architecture, and then afterwards visit the UNESCO-designated Rock-Hewn Churches of Ivanovo with frescos revealing exceptional artistry of 14th-century paintings. Alternatively, travel through the Romanian countryside to the capital of Bucharest, known as the “Little Paris of the East,” for a full day tour. Enjoy a panoramic tour of the historic city center and its elegant architecture, followed by a visit to the Palace of the Parliament, the second largest administrative building in the world. In the afternoon, journey to a Rousse Wine House and the Leventa complex set in a unique fortification structure dating back almost 200 years and be treated to a tasting of three wines while learning about the wine making process. (B/L/D) *Not available with full-day excursions

Excursions:

• Full-day Veliko Tarnovo excursion OR Veliko Tarnovo & Wine Tasting excursion OR Ivanovo Rock-Hewn Churches & Rousse Highlights Tour OR Full-day Bucharest excursion
• Leventa wine tasting*

Disembark the ship in Giurgiu and board a motorcoach to journey through the Romanian countryside to Bucharest. Later, board your flight to Istanbul, where you'll check into your hotel. (B)

Excursions:

• Flight to Istanbul

Admire the grandeur of the spectacular Ottoman Sultans' Grand Palace of Topkapi, home to every Sultan from the 15th-19th centuries. During your tour, marvel at the private chambers of the Sultans, the Harem (women's quarters) and the Imperial Treasury's vast collection, including the jewel-encrusted Topkapi Dagger and the stunning 86-carat Spoonmaker's Diamond. (B)

Excursions:

• Topkapi Palace & Harem

Depart your hotel for an enriching guided walking tour, during which you will explore the Hagia Sophia, formerly a church before becoming a mosque and finally a museum. A beautiful example of Old-World architecture, this museum showcases lovely Christian murals and Islamic symbols throughout. After the Hagia Sophia, visit Istanbul's similarly beautiful Blue Mosque, named for the Blue İznik tiles that cover its interior. For those who are interested, be guided to the lively Grand Bazaar and venture through the market before returning to your hotel. (B)

Excursions:

• Istanbul Walking Tour

Bid farewell to Istanbul as you prepare for your flight home. (B)

Arrive in Vienna and transfer to your hotel.

The “City of Waltzes” offers a treasure trove of gems just waiting to be discovered on your city tour. See the majestic Opera House and the former Imperial Palace of the Habsburgs before concluding in Vienna's historic city center. (B)

Excursions:

• “Imperial Vienna” tour

Board the ship for your Gems of Southeast Europe cruise. (D)

Excursions:

• Transfer to Budapest

Enjoy an excursion to Pécs and see Szechenyi Square, the Christian Necropolis – a UNESCO World Heritage Site – and St. Peter's Basilica with its underground burial chambers. For a more active adventure, delight in a guided bike ride along the Danube River. For wine connoisseurs, you'll visit the Szekszárd wine region, one of the oldest red-wine-growing areas in Hungary, established more than 2,000 years ago. (B/L/D)

Excursions:

• Pecs Excursion OR Guided Bike Ride Along the Danube OR Szekszárd wine tasting

Explore Novi Sad, a city rich in tradition and culture, on a full-day walking tour. Begin your tour at the Dunavski (Danube) Park; stroll through Stari Grad, the old town center; and explore Liberty Square, which is dominated by the Old Town Hall. You will also have the option to visit the Petrovaradin Fortress. Or enjoy your morning in Vukovar on a guided city tour where you will have a chance to visit Eltz Manor House, Vukovar's famous water tower, and the Vucedol Museum. Alternatively, you may explore Vukovar on an active bike tour. In the afternoon, travel to Ilok, situated in the easternmost part of Croatia, to enjoy a wine tasting and tour in the Old Cellars of Ilok, famous for their Grasevina, Traminac and Frankovka wines. (B/L/D)

Excursions:

• Full-day Novi Sad Tour OR Highlights of Vukovar OR Vukovar Guided Bike Tour
• Croatian wine tasting

Explore Serbia's capital, Belgrade, on a city tour, which includes the Nikola Tesla Museum, encompassing the world-renowned inventor's life and inventions, as well as the Kalemegdan Fortress and the Serbian Orthodox Temple of St. Sava. Alternatively, you can enjoy a taste of the region by sampling wine and snacks at the Podrum Panajotovic Wine Cellar, where old traditions and excellent wine are preserved 10 meters below the streets of Belgrade. For those wishing for a more active adventure, join a guided bike tour or hike to Belgrade Fortress. (B/L/D)

Excursions:

• “The City by Two Rivers” tour OR Belgrade Fortress hike OR Podrum Panajotović wine tasting OR Belgrade bike tour

Visit Golubac Fortress – one of the best-preserved medieval fortresses in Europe – before cruising through the Iron Gates – one of Europe's most awe-inspiring natural wonders. The Danube narrows as it winds through a series of magnificent gorges between the Carpathian and Balkan mountains, forming a natural border between Serbia and Romania. The ancient King Decebalus, the last king of Dacia, is proudly carved into the mountainside and always captivates travelers. (B/L/D)

Excursions:

• Golubac Fortress visit
• Scenic Cruising – The Iron Gates

Explore Vidin, one of Bulgaria's oldest cities, and surrounding areas with a choice of excursions. Discover Baba Vida Fortress, the largest preserved medieval castle in Bulgaria. Alternatively, visit a local home for a demonstration of traditional Bulgarian yogurt and Banitsa, a pastry you will also get to make. You also have the choice to bike through Vidin and to the castle. Or enjoy a wine tasting at a local boutique winery just outside of Vidin. (B/L/D)

Excursions:

• Baba Vida Fortress and Vidin Walking Tour OR Calafat wine tasting OR Banitsa Pastry and Yogurt making OR Vidin bike tour OR Dos Alamos wine tasting

Visit Bulgaria's ancient capital, Veliko Tarnovo, with its medieval fortress and multiple orthodox temples. You can opt instead to go to Rousse, known for its 19th- and 20th-century Neo-Baroque and Neo-Rococo architecture, and then afterwards visit the UNESCO-designated Rock-Hewn Churches of Ivanovo with frescos revealing exceptional artistry of 14th-century paintings. Alternatively, travel through the Romanian countryside to the capital of Bucharest, known as the “Little Paris of the East,” for a full day tour. Enjoy a panoramic tour of the historic city center and its elegant architecture, followed by a visit to the Palace of the Parliament, the second largest administrative building in the world. In the afternoon, journey to a Rousse Wine House and the Leventa complex set in a unique fortification structure dating back almost 200 years and be treated to a tasting of three wines while learning about the wine making process. (B/L/D) *Not available with full-day excursions

Excursions:

• Full-day Veliko Tarnovo excursion OR Veliko Tarnovo & Wine Tasting excursion OR Ivanovo Rock-Hewn Churches & Rousse Highlights Tour OR Full-day Bucharest excursion
• Leventa wine tasting*

Disembark the ship in Giurgiu and board a motorcoach to journey through the Romanian countryside to Bucharest. Later, board your flight to Istanbul, where you'll check into your hotel. (B)

Excursions:

• Flight to Istanbul

Admire the grandeur of the spectacular Ottoman Sultans' Grand Palace of Topkapi, home to every Sultan from the 15th-19th centuries. During your tour, marvel at the private chambers of the Sultans, the Harem (women's quarters) and the Imperial Treasury's vast collection, including the jewel-encrusted Topkapi Dagger and the stunning 86-carat Spoonmaker's Diamond. (B)

Excursions:

• Topkapi Palace & Harem

Depart your hotel for an enriching guided walking tour, during which you will explore the Hagia Sophia, formerly a church before becoming a mosque and finally a museum. A beautiful example of Old-World architecture, this museum showcases lovely Christian murals and Islamic symbols throughout. After the Hagia Sophia, visit Istanbul's similarly beautiful Blue Mosque, named for the Blue İznik tiles that cover its interior. For those who are interested, be guided to the lively Grand Bazaar and venture through the market before returning to your hotel. (B)

Excursions:

• Istanbul Walking Tour

Bid farewell to Istanbul as you prepare for your flight home. (B)