<strong>More galleries from The National:</strong> <strong><a href="https://www.thenational.ae/uae/heritage/work-on-expo-2020-dubai-site-to-be-completed-by-end-of-the-year-1.1035566">Work on Expo 2020 Dubai site to be completed by end of year</a></strong> <strong><a href="https://www.thenational.ae/uae/science/a-history-of-mars-exploration-a-look-back-at-international-efforts-to-study-the-red-planet-1.1036262">Mars exploration: a look back at efforts to study the Red Planet</a></strong> <strong><a href="https://www.thenational.ae/lifestyle/travel/one-for-the-travel-wish-list-look-inside-the-airbnb-that-s-most-popular-with-uae-travellers-1.1035996">Take a look inside the Airbnb most popular with UAE travellers</a></strong>