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.

The Maldives, a nation of islands scattered across the Indian Ocean, is known for its dazzling turquoise waters, white-sand beaches, and vibrant coral reefs. Stretching across 26 atolls, this tropical paradise is often described as one of the most beautiful places on Earth.

Known as Sugar City, Lautoka is a tropical destination on the western coast of Fiji. Be sure to take a stroll through the Lautoka Botanical Gardens, or venture just outside of the city to take in the natural beauty of Koroyanitu National Park, a rainforest preserve with spectacular hikes and bird-watching excursions.

This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers.

The dazzling capital of the Czech Republic, the explorable Prague has fittingly been nicknamed "the City of a Hundred Spires." Halved by the Vltava River and notable for architecture Baroque, Renaissance, and Gothic, visitors will find much to take in here.