Rothenburg ob der Tauber rises above the Tauber River in Bavaria, where its medieval town center has stood largely unchanged for centuries, making it one of Germany’s most vivid windows into the past. This old walled city stretches along cobblestone streets where half-timbered houses, ancient towers, and narrow alleys invite visitors to wander and imagine life in the Middle Ages.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

Incorporated in 1867, it is the capital of the state of Wyoming. Gold mining has been a major industry here.

Riyadh blends stories from centuries with modern splendor. At its core stands Al Masmak Fortress, built of clay and mud-brick in the 19th century. It was the site that set the stage for the unification of Saudi Arabia. Today, it’s a museum that preserves weapons, historical displays, and accounts of that pivotal moment. Adjacent to the fortress, the Souq Al-Zal offers spices, traditional jewelry, and handmade crafts, connecting visitors to the city’s past through its alleyways.

Samarkand is one of Central Asia’s most storied cities, famed for its role as a crossroads of culture, science, and trade along the Silk Road. The heart of the city is the Registan, a grand square framed by three ornate madrasas decorated with vivid mosaics, intricate tilework, and soaring arches.