Kos, an enchanting island in Greece’s Dodecanese archipelago, is a gem steeped in both history and natural beauty. Known as the birthplace of Hippocrates, the father of modern medicine, Kos is home to the ancient Asclepeion, a healing temple where Hippocrates taught his students. Visitors can wander through the well-preserved ruins and enjoy sweeping views over the island and the Aegean Sea.

This southwestern U.S. state is best known for the Grand Canyon, which is a must-see. Other attractions include Tuscon's Saguaro National Park, golf courses in Phoenix, as well as Sedona's Cathedral Rock.

Granada, nestled at the foot of the Sierra Nevada mountains in southern Spain, is a city where history and culture converge in a mesmerizing blend. The jewel of Granada is the Alhambra, a stunning palace and fortress complex that dates back to the 13th century. This UNESCO World Heritage Site is a testament to the city's Moorish past, showcasing intricate Islamic art and architecture.

On the Nile's east bank sits Luxor, a onetime stronghold for Egyptian pharaohs. Key sites include Luxor Temple, Karnak Temple, and the Valley of the Kings.

A former trading port and now a fascinating itinerary stop for any Vietnam traveler, Hoi An's illuminated lanterns beckon you. Each lunar month on the 14th day, electric lights are turned off in favor of traditional lanterns. Must-sees in this well-preserved locale include Quan Cong Temple, the 1700s-era Japanese Covered Bridge, An Bang Beach with its white sands, and Hoi An Night Market, abuzz with local sellers offering food and unique wares.