Seven miles outside of historic Athens, the Greek coastal city of Piraeus lies upon the sparkling waters of the Aegean Sea and is the largest passenger port in Europe, servicing nearly 20 million passengers per year.

Dartmoor National Park sits in the heart of Devon, England, and invites travelers to step into a landscape that has changed little over thousands of years. Rolling moorland, deep river valleys, and more than 450 miles of paths give visitors space to explore at their own pace. Ancient stone rows, circular dwellings, and burial cairns spread across the moorland are reminders of people who lived here as far back as the Bronze Age.

Arequipa, known as the "White City," is built from sillar, a pale volcanic stone that glows in the sunlight. This architectural detail gives the historic center its striking appearance and has earned it recognition as a UNESCO World Heritage Site. Towering above the city is the perfectly symmetrical Misti Volcano, which, along with two neighboring peaks, forms a dramatic backdrop.

Cambridge, Massachusetts, sits across the Charles River from Boston and is known for its universities, historic neighborhoods, research institutions, and distinctive network of public squares. Harvard University and the Massachusetts Institute of Technology give the city an international academic profile, while areas such as Harvard Square, Central Square, Kendall Square, and Inman Square each have their own mix of shops, restaurants, cultural venues, and businesses.

San Pedro de Atacama, a small town in northern Chile, sits at over 2,400 meters above sea level in one of the most geologically diverse areas on Earth. Surrounded by volcanoes, salt flats, geysers, and ancient lava flows, it has long served as a gateway to the Atacama Desert. This desert is the driest non-polar place in the world, where some weather stations have never recorded rainfall.