Midway between Salzburg and Vienna, Linz boasts beautiful Baroque buildings, including Old Town Hall and the Old Cathedral, Alter Dom. Lentos Kunstmuseum Linz has a major modern art collection and across the river, the striking Ars Electronica Center focuses on society, technology, and the future. Some of Austria's most iconic figures, including Adalbert Stifter, composers Wolfgang Mozart and Anton Bruckner, and the famous scientist Johannes Kepler, once called Linz home.

Doubtful Fjord (Doubtful Sound) is a large fjord in southwestern New Zealand, in the same region as the smaller but better known Milford Sound. It is home to an unusually large population of bottlenose dolphins, as well as a variety of birds, fur seals, penguins, and often even humpback whales.

Missouri, nestled in the heart of the United States, offers a rich tapestry of history, culture, and natural beauty. Begin your exploration in St. Louis, where the iconic Gateway Arch stands as a testament to westward expansion and American ambition. This architectural marvel not only offers breathtaking views of the Mississippi River but also houses the Museum of Westward Expansion, delving into the stories of pioneers and explorers who shaped the nation.

Nestled on the banks of the Danube River, Vidin, Bulgaria, is a city where history and scenic beauty converge. This ancient city, known for its well-preserved medieval fortress, the Baba Vida Castle, offers a unique glimpse into Bulgaria's past. The fortress, dating back to the 10th century, stands as one of the best-preserved medieval fortifications in the country.

It's the largest of the three U.S. Virgin Islands, lying 40 miles south of St. Thomas and St. John. While its history is laced with tales of pirates and privateers, the island today maintains a slower, more quiet pace than its sisters to the north.