Graz, Austria's second-largest city, is a hidden gem that offers a perfect blend of history, culture, and modernity. Its well-preserved medieval old town, a UNESCO World Heritage Site, invites visitors to stroll through cobblestone streets lined with Renaissance courtyards and Baroque façades. At the heart of the city is the Schlossberg, a forested hill crowned by the iconic clock tower, Uhrturm.

Plovdiv, one of the oldest continuously inhabited cities in Europe, carries over 8,000 years of history layered into its streets. The Roman Theater, still in use today, was discovered by accident in the 1970s and now hosts operas and concerts overlooking the Rhodope Mountains. Nearby, visitors can walk the remains of a Roman stadium buried beneath the main pedestrian street, where modern shops and cafés stand above ancient foundations.

Reshaped by volcanic activity, the rugged yet enchanting Santorini beckons all seafaring souls in the Aegean Sea. Visitors to this breathtaking and romantic Cyclades archipelago will gaze at the whitewashed cubiform houses sitting cliffside and hovering over the water.

Brno, the vibrant heart of the Czech Republic's Moravian region, offers a captivating blend of historical charm and modern dynamism. As the second-largest city in the country, Brno is known for its striking architecture, including the Špilberk Castle, which overlooks the city from its hilltop perch. Originally a medieval fortress, Špilberk Castle has evolved into a cultural and historical museum, showcasing exhibits on the city’s rich past and providing panoramic views of Brno.

At Chile's northernmost end, the dizzying railway from high Bolivia comes down to the sea. Arica, the City of Eternal Spring, has a population of 169,000. and is located in the Atacama Desert. See San Marcos Cathedral, designed by Gustave Eiffel, and marvel at Pre-Incan relics in the City Museum. Or leave the city to venutre to the White City of Arequipa, the Incan capital of Cuzco and Machu Picchu and the ancient Inca city in the clouds.