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.

Etosha National Park, located in northern Namibia, is one of Africa’s most renowned wildlife destinations. Covering nearly 8,500 square miles, it is centered around the Etosha Pan, a massive salt flat that can be seen from space. During the dry season, animals gather around waterholes, creating spectacular wildlife viewing opportunities that attract visitors from around the world.

Istanbul is a city built on layers of empire. Spanning two continents, it was once the capital of three major empires: Roman, Byzantine, and Ottoman. Visitors walking through the Sultanahmet district can witness this timeline firsthand, from the Roman-era Hippodrome to the Byzantine mosaics of Hagia Sophia, and the towering minarets of the Blue Mosque. At nearby Topkapi Palace, rooms still display the jeweled swords, ceremonial robes, and handwritten Qurans once used by Ottoman sultans.

Bordeaux is ready for its close-up! After years of improvements, modern public transportation is in place and the city is gleaming after a wave of restorations. When visiting this lovely destination, be sure to walk across the Garonne River-spanning Stone Bridge (17 arches in all!) and see Place des Quinconces, France's grandest public square.

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.