Podgorica, the capital of Montenegro, showcases the country’s contrasting landscapes and deep-rooted history. Although much of the city was rebuilt after World War II, traces of its Roman and Ottoman past still remain. Visitors can explore the ruins of Doclea, a Roman settlement just outside the city, where surviving columns and mosaics give a glimpse into life nearly two millennia ago.

Iguassu Falls, straddling the border between Brazil and Argentina, is a breathtaking natural wonder that captivates visitors with its sheer scale and beauty. This UNESCO World Heritage Site boasts the largest waterfall system in the world, with nearly 275 individual falls cascading over a rugged landscape.

Oklahoma City stands at the crossroads of Western tradition and modern energy. It’s a place where cowboy boots walk into sleek coffee shops, and horse shows take place just a few miles from contemporary art galleries. A good starting point is the National Cowboy & Western Heritage Museum, home to one of the largest collections of Western art and artifacts in the world.

This small yet charming city in Alaska's panhandle is a throwback to the gold rush era. Skagway is a well-preserved part of Klondike Gold Rush National Historical Park.

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.