The capital of France, famous for its art, fashion, gastronomy, and culture. Iconic landmarks include the Eiffel Tower and the Louvre Museum.

The world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres.

An Incan citadel set high in the Andes Mountains in Peru, above the Urubamba River valley. Renowned for its sophisticated dry-stone walls.

Once the imperial capital of Japan, it is famous for its numerous classical Buddhist temples, as well as gardens, imperial palaces, and traditional wooden houses.

A steep-sided canyon carved by the Colorado River in Arizona, United States. It is 277 miles long, up to 18 miles wide and attains a depth of over a mile.

Egypt’s sprawling capital, set on the Nile River. At its heart are Tahrir Square and the vast Egyptian Museum, a trove of antiquities including royal mummies.