Zacatecas, built into the slopes of a narrow ravine in north-central Mexico, is a city with a deep mining past and a striking skyline. The historic center, a UNESCO World Heritage Site, is known for its pink cantera stone buildings, narrow alleys, and impressive baroque facades. The Cathedral Basilica of Zacatecas, completed in 1752, stands as one of the most detailed examples of Mexican baroque architecture, with hundreds of carved figures covering its sandstone exterior.

In the heart of South America, Ecuador offers a compact yet astonishingly diverse experience for travelers. From the cobbled streets of Quito’s historic center to the vibrant Afro-Ecuadorian rhythms of Esmeraldas, the country pulses with stories waiting to be discovered. Just a short drive away, visitors can stand on the equator line at the “Mitad del Mundo” and participate in engaging experiments that demonstrate the planet’s gravitational quirks.

Bartlett, New Hampshire is a small White Mountains town with a deep connection to outdoor adventure and quiet mountain charm. Founded in the late 18th century, Bartlett began as a logging and railroad hub, and remnants of that past still echo through its historic buildings and covered bridges. The Bartlett Roundhouse, a relic from the town’s railway days, now serves as a museum and reminder of how trains once connected this remote region to the rest of New England.

Tonga is distinctly different to its neighboring island nations. This Polynesian kingdom, made up of 170 islands, carries a proud history that dates back over 3,000 years. On the main island of Tongatapu, travelers can explore ancient stone structures like the Haʻamonga ʻa Maui Trilithon—sometimes called the Stonehenge of the Pacific. Royal tombs in Lapaha offer a glimpse into the lineage of Tonga’s kings, while village life remains guided by customs that have changed little over centuries.

Chuuk, one of the four states of the Federated States of Micronesia, is best known for its vast lagoon which is one of the largest enclosed lagoons in the world. But what sets Chuuk apart is what lies beneath those calm blue waters: an entire underwater fleet of sunken warships, aircraft, and submarines left from World War II. Often called the "Ghost Fleet of Truk Lagoon," these wrecks make Chuuk a global destination for experienced divers.