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.

Speyer, located in the Rhineland-Palatinate region of Germany, is a city rich in history and culture. One of its most notable landmarks is the Speyer Cathedral, a UNESCO World Heritage Site and one of the largest Romanesque churches in the world.

Roatan is the largest of the eight islands known collectively as Las Islas de la Bahia. Brilliant clear blue waters and palm fringed beaches are cooled by gentle trade winds. An extensive reef system offers the most spectacular diving and snorkeling in the Western hemisphere, while inland nature reserves give an up-close look at native wildlife, including monkeys, sloths, and parrots.

This small yet charming city in Alaska's panhandle is a throwback to the gold rush era. Skagway is a well-preserved part of Klondike Gold Rush National Historical Park.

Malacca, also known as Melaka, sits along Malaysia’s west coast and is one of Southeast Asia’s most historically layered cities.