This picture, taken on April 5, 2019, shows a view of the entrance of the New Kingdom period (16th-11th centuries BC) Temple of Seti I, at the archaeological site of Abydos near Egypt’s southern city of Sohag, about 540 kilometers from the capital, Cairo. (By AFP)

Workers construct the famous Druzhba Narodov (Friendship of nations) fountain in the All-Russia Exhibition Center (VDNKh), a trade show and amusement park in Moscow, Russia, on April 5, 2019. (Photo by AFP)

Scientific consultants assemble the bones of a Crested Hypacrosa’s skeleton, a Jurassic age (72-70 million years) dinosaurs at the Drouot auction house in Paris, France, on April 13, 2019. (Photo by AFP)

A rainbow is seen over the Manhattan skyline from the Top of the Standard in New York City, the US, on April 15, 2019. (Photo by AFP)

Smoke billows from the Notre Dame Cathedral during a fire, in Paris, France, on April 15, 2019. (Photo by Reuters)

A climate change activist demonstrates at Oxford Circus during an Extinction Rebellion protest in London, Britain, on April 15, 2019. (Photo by Reuters)

A demonstrator holds a banner during a climate protest in Parliament Square in London, the UK, on April 15, 2019. (Photo by AP)

Bartek, a male Amur tiger, chooses a box with a photograph of candidate Volodymyr Zelenskiy while attempting to predict the winner of the Ukrainian presidential election, as a box with photo of candidate Petro Poroshenko is placed nearby, during an event at the Royev Ruchey Zoo, in Krasnoyarsk, Russia, on April 15, 2019. (Photo by Reuters)

A runner tries to keep dry before the 123rd running of the Boston Marathon in Boston, Massachusetts, the US, on April 15, 2019. (Photo by Reuters)