A child cools off in a fountain as a summer heatwave continues in Paris, France, on August 3, 2018. #

The dome of St. Paul's Cathedral and construction cranes are silhouetted by the rising sun at dawn in London, England, on August 5, 2018. #

Elephants of the Cirkus Arena are hosed down by local firefighters due to high temperatures on August 2, 2018, in Gilleleje, Denmark. #

A man wearing a Mario Bros. costume takes a break from work posing for tourist photos in the shade at Sol square in Madrid, Spain, on August 2, 2018. #

A serval rubs against a frozen treat made with syrup and chicken to cool off during a heat wave, at the La Fleche Zoo in northwestern France on August 3, 2018. #

People on boats enjoy the weather on Lake Lucerne in Sisikon, Switzerland, on August 5, 2018. #

People on inflatable boats enjoy the weather, gathered near a cliff diving competition on Lake Lucerne in Sisikon, Switzerland, on August 5, 2018. #

A woman cools herself under a waterfall during extreme hot weather in Mersin, Turkey, on July 11, 2018. #

A western lowland gorilla licks an icy treat in its enclosure in the Prague Zoo on August 6, 2018. #

People ride a water slide at the Caribbean Bay water park in Yongin, outside Seoul, South Korea, on August 6, 2018. #

People cool off in a weir on the Berounka river in the village of Dobrichovice, near Prague, Czech Republic, on July 22, 2018. #

A boy dives into the sea on the Island of Chausey, off the coastal town of Granville, France, on August 5, 2018. #

With a little help, a dog drinks water from a public fountain, as temperatures soar across Europe, in Madrid, Spain, on August 3, 2018. #

A girl cools off in a fountain at Manezhnaya Square on a warm summer day in downtown Moscow on August 2, 2018. #

Riders and their horses cool down during hot weather in Lake Constance near Guettingen, Switzerland, on August 3, 2018. #

Holiday-makers swim under a waterfall in a swimming pool on the beach of El Sokhna in Suez, Egypt, on August 4, 2018. #

A boy dives off rocks into the sea at sunset in Quiberon, France on August 3, 2018. #

A South Korean boy enjoys the 'Ice Museum' on August 2, 2018, during a heat wave in Seoul, South Korea. #

A beachgoer relaxes in the hot weather at Brighton in southern England, on August 3, 2018. #

Women jump from a platform into the water at La Concha beach during a hot summer day in the basque city of San Sebastian, Spain, on August 3, 2018. #

People float in swimming rings at a water park in Yangzhou, Jiangsu province, China, on August 5, 2018. #

A man poses for a photo in Berdan Dam's fountain as he cools himself on a sunny day in Mersin, Turkey, on July 29, 2018. #

A boy jumps into the water at the Alte Donau, a former branch of the Danube River, in Vienna, Austria, on August 6, 2018. #