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.

Las Vegas, Nevada, is an electrifying city where glitz and glamour meet entertainment and excitement. Known as "The Entertainment Capital of the World," Las Vegas offers an unparalleled array of attractions, from its iconic casinos and luxurious hotels to its world-class dining and live shows. The city's entertainment scene is second to none, featuring legendary headliners, cutting-edge performances, and an array of themed attractions.

Geneva is a cosmopolitan metropolis proud of her traditions. It is the international meeting place of many worldwide organizations including the United Nations and W.H.O. The symbol of the city, the Jet D'Eau is located on the picturesque lake which is surrounded by the splendid gardens and parks. The elegant city has an astonishing variety of boutiques and department stores filled with every imaginable item.

A dynamic island escape, Penang, Malaysia, is chock-full of exciting attractions, beautiful beaches, and stunning architecture. Head to the George Town neighborhood, a UNESCO World Heritage Site, to explore the island's best colonial architecture and historical landmarks, including the Penang Town Hall, Fort Cornwallis, and Queen Victoria Memorial Clock Tower.

Astoria, Oregon is the state's oldest city. Located on the Columbia River near the Pacific Ocean, Astoria is rich in history, including fishing, canning and the Lewis and Clark Expedition.