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.

Though it's San Diego County's smallest city in both size and population, Del Mar is one of its most widely known due to prominence of its Del Mar Race Track & Fairgrounds. The City of Del Mar with about 2 square miles of land for its 5,211 residents, the city gives up almost one quarter to the fairgrounds. But its beaches stretch from Del Mar Shores Beach Park in the north edge of Torrey Pine State Reserve and the La Jolla Underwater Park in the south.

Trier, Germany’s oldest city, is a living museum nestled in the Moselle Valley, where Roman ruins rise beside medieval churches and bustling market squares. Founded by the Romans in 16 BCE, Trier was once known as “Roma Secunda,” the second Rome, and still boasts the largest collection of Roman architecture north of the Alps. The Trier Cathedral (Dom St. Peter), which is a UNESCO World Heritage Site, is the oldest church in Germany and houses a relic said to be the Holy Robe of Christ.

Sirmione, a picturesque town on the southern shore of Lake Garda, Italy, offers a unique blend of natural beauty and historical intrigue. Known for its stunning peninsula that juts into the lake, Sirmione is celebrated for its charming medieval streets and spectacular lakeside views. At the heart of the town stands the Scaliger Castle, a 13th-century fortress surrounded by moats and offering panoramic views of Lake Garda and the surrounding landscape.

Beppu boasts the largest volume of hot water and number of hot spring sources in Japan. The city is divided into eight distinct hot spring areas.