Oslo, Norway’s capital, stands at the crossroads of Nordic history and forward-thinking design. Originally founded over a thousand years ago by Viking King Harald Hardrada, the city has evolved from a medieval trading hub into one of Europe’s most modern capitals. Visitors can explore its layered past at the Akershus Fortress, a 13th-century stronghold still standing guard over Oslofjord, or walk through the preserved wooden homes of Damstredet.

Pula, a historic city located on the Istrian Peninsula in Croatia, is renowned for its impressive Roman heritage and vibrant cultural scene. The city's centerpiece is the Pula Arena, one of the best-preserved Roman amphitheaters in the world. This monumental structure, built in the 1st century AD, offers visitors a glimpse into ancient spectacles and gladiatorial contests. Today, it hosts various events, including concerts and film festivals.

This southern Mexican state borders Guatemala. Its mountainous highlands and dense rainforest are dotted with several Mayan archaeological sites and Spanish colonial towns.

Speyer, located in the Rhineland-Palatinate region of Germany, is a city rich in history and culture. One of its most notable landmarks is the Speyer Cathedral, a UNESCO World Heritage Site and one of the largest Romanesque churches in the world.

Progreso, a coastal city in the state of Yucatán, offers travelers a relaxed atmosphere with strong ties to the sea. Founded in 1871 as a port to support trade in the region, Progreso now welcomes both cargo ships and cruise liners to its shores. Its most defining feature is the Progreso Pier, one of the longest in the world, stretching over 6 kilometers into the Gulf of Mexico.