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.

Guam, a vibrant island territory in the Western Pacific, offers travelers more than just sandy beaches and turquoise water. As the largest island in Micronesia, Guam has a dynamic past that’s shaped its present. Evidence of ancient Chamorro settlements can be found at sites like Latte Stone Park, where limestone pillars dating back over a thousand years stand tall.

The Gulf of California, also known as the Sea of Cortez, is a dazzling stretch of water that separates the Baja California Peninsula from mainland Mexico. This remarkable body of water offers a paradise for nature enthusiasts and adventure seekers alike.

Bath is a city full of history and culture. Romans trekked many miles to bathe in the hot, soothing mineral waters of the Roman Bath. Majestic art collections were contributed to Bath from many different civilizations. The fan-vaulting at Bath Abbey has 614 memorial tablets that creates an extensive mural cenotaph to the people that contributed to the grandeur of Bath.

Albuquerque, New Mexico, is a city where centuries-old adobe architecture, desert landscapes, and modern innovation meet beneath some of the clearest skies in the country. Every October, Albuquerque becomes the site of one of the most photographed events in the world: the Albuquerque International Balloon Fiesta. For nine crisp mornings, hundreds of hot air balloons rise over the city, painting the sky in brilliant colors and wild shapes with everything from farm animals to space aliens.