Potsdam, the capital of Germany’s Brandenburg state, lies just southwest of Berlin and is best known for its grand palaces, landscaped gardens, and role as a seat of Prussian royalty.

As a city located in a Baltic Sea archipelago, it's not surprising that Stockholm has 50 bridges and sightseeing boats moving people between its 14 islands. This contemporary and welcoming capital of Sweden is nonetheless easily navigable by foot. Every district here has a distinct flavor, from the sophisticated Östermalm to the bustling downtown energy of Norrmalm to the delightful Old Town.

A veritable paradise on Earth, Auckland combines the best of both worlds – a thrilling urban metropolis surrounded by striking natural areas, sparkling blue water, and colorful wildlife. New Zealand’s cultural and recreational hub, beautiful Auckland has something for everyone.

Mesa Verde National Park, nestled in the southwestern corner of Colorado, offers an extraordinary journey into the ancient past of the Ancestral Puebloans. This UNESCO World Heritage Site is renowned for its remarkably well-preserved cliff dwellings, built into the sheer rock faces of the canyon walls.

Delhi is a sprawling metropolis in North India that contains the country's capital, New Delhi. Life is abuzz and hectic here, with traffic going every which way. A huge population shuffles through Delhi's streets, alleys and food and spice-selling bazaars, and it's quite memorable to be a part of it all.