Marathon, located near the center of the Florida Keys, is a vibrant island city known for its fishing, boating, and tropical charm. Nestled between Key Largo and Big Pine Key, Marathon is surrounded by clear waters, coral reefs, and sandy beaches, making it a prime destination for water-based recreation.

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.

Quetzaltenango, often called Xela by locals, is Guatemala’s second-largest city and a hub of indigenous culture, colonial history, and highland landscapes. Surrounded by volcanoes, including the towering Santa María, the city sits at over 7,600 feet above sea level, giving it a crisp mountain climate that contrasts with the country’s tropical lowlands.

Coa Valley lies in northeastern Portugal near the Douro River, in a landscape shaped by steep hills, schist cliffs, vineyards, olive groves, and almond trees. The area is best known for its open-air prehistoric rock engravings, spread across the banks of the Coa River and protected as a UNESCO World Heritage Site.

Together with neighboring Glacier National Park in the United States, Waterton Lakes National Park is part of the world's first international Peace Park, which was recognized as a UNESCO World Heritage Site in 1955. The Waterton-Glacier Peace Park protects an important biological crossroads where the Rocky Mountains reach their narrowest width. Waterton's bedrock is much older than that of the mountains to the north found in Jasper and Banff.