A city in perpetual forward motion, Abu Dhabi greets visitors with gleaming skyscrapers and opulent Islamic architecture. There is much to see here, from the recently opened Louvre Abu Dhabi to the gigantic Sheikh Zayed Grand Mosque, with its white marble splendor. Beach life and turquoise waters can be found on Saadiyat Island, Al Bateen and Corniche Beach.

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.

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.

Krujë sits on a rocky hilltop above central Albania and has long been a symbol of the country’s history and independence. At Krujë Castle ancient stone walls rise above the town and offer striking views of the surrounding hills and valleys, and inside the fortress visitors find the Skanderbeg Museum, where armor, documents and displays recount the life and battles of Albania’s national hero.

Elephant Island, a remote outcrop off the coast of Antarctica, is not your average travel destination. Known for its dramatic cliffs, towering glaciers, and wild, ice-laced seas, this island is both stark and unforgettable. Located 245 kilometers northeast of the Antarctic Peninsula, Elephant Island is rarely visited except by specialized expedition cruises.