Ngorongoro, Tanzania, is a destination where breathtaking landscapes and abundant wildlife converge in a truly unique way. Nestled within the Ngorongoro Conservation Area, this region is renowned for the Ngorongoro Crater, a UNESCO World Heritage Site. This ancient caldera, formed by a volcanic eruption millions of years ago, creates a natural amphitheater teeming with wildlife.

From the rugged highlands and volcanic plateaus to the lowland deserts and the Great Rift Valley, Ethiopia's terrain is as varied as it is dramatic.

Replete with windmills and old-world charm, the village of Kinderdijk lies east of Rotterdam on the Lek River and is a popular stop for European river cruises. Home to the largest concentration of old windmills in the Netherlands, Kinderdijk was designated a UNESCO World Heritage Site in 1997.

Basel is the global center of the pharmaceutical industry, but most travelers visit for the world-famous ART Basel festival, as well as the numerous art galleries, iconic architecture and museums.

Lisbon, the enchanting capital of Portugal, entices sightseers with its vibrant color, stunning Gothic architecture, and temperate weather. Easily traversed by foot or tram, the city’s distinct quarters and vivid cultural landmarks make Lisbon an excellent spot for exploration.