Borjomi sits high in the center of Georgia, in a long valley along the Borjomula River surrounded by forested mountains. For centuries its mineral springs have drawn people to the region, but it wasn’t until the 1800s that the water became known to the wider world when Russian officers stationed here shared its crisp, naturally fizzy taste and believed health-boosting properties with visitors.

Rovaniemi, located just a few kilometers south of the Arctic Circle, is widely recognized as the official hometown of Santa Claus. From late August through early April, the Northern Lights are visible on clear nights, and several local guides offer nighttime tours to remote locations for optimal viewing. During summer, the sun doesn't set for weeks, giving travelers the rare chance to hike or kayak under a sky that stays bright at midnight.

Poros, a small island in the Saronic Gulf of Greece, is known for its pine-covered hills, neoclassical architecture, and laid-back charm. Just an hour by ferry from Athens, it feels worlds away from the bustle of the capital, offering a slower pace and picturesque scenery.

Warnemunde (or Warnemünde) is a port city in Germany and a frequent stop on many Northern European cruises. Across the Baltic Sea from Denmark's capital, Copenhagen, this charming seaside city has a number of delightful attractions, including the Warnemünde Lighthouse, a variety of local shops along the marina, and surfing lessons on the beach.

Mount Kilimanjaro, located in Tanzania, stands as Africa’s highest peak and an iconic symbol of adventure. This majestic stratovolcano rises 5,895 meters (19,341 feet) above sea level, making it one of the world’s most accessible high summits. Climbing Kilimanjaro offers a unique opportunity to traverse multiple climate zones, from lush rainforests and alpine meadows to the icy summit.