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- A zookeeper uses water to cool off elephants, as a heatwave is expected to reach the city, at the Berlin Zoo, Germany June 25, 2019. REUTERS/Annegret Hilse
- People cool off in the fountains at the Andre Citroen park in Paris as a heatwave hit much of the country, France, June 25, 2019. REUTERS/Charles Platiau
- People cool off in the fountains at the Andre Citroen park in Paris as a heatwave hit much of the country, France, June 25, 2019. REUTERS/Charles Platiau
- People cool off in the Trocadero fountains across from the Eiffel Tower in Paris as a heatwave hit much of the country, France, June 25, 2019. REUTERS/Charles Platiau
- People cool off in the Trocadero fountains across from the Eiffel Tower in Paris as a heatwave hit much of the country, France, June 25, 2019. REUTERS/Charles Platiau
- People cool off at a fountain in downtown Rome as a heatwave hits Italy, June 25, 2019. REUTERS/Yara Nardi
- A woman cools off at a fountain in downtown Rome as a heatwave hits Italy, June 25, 2019. REUTERS/Yara Nardi
- People cool off in water fountains in Nice as a heatwave is expected in much of the country, France, June 24, 2019. REUTERS/Eric Gaillard
- The sun shines in the sky over the Eiffel Tower in Paris as a heatwave is expected in much of the country, France, June 24, 2019. REUTERS/Philippe Wojazer
- People sunbathe near the Trocadero fountains and the Eiffel tower in Paris as a heatwave is expected in much of the country, France, June 24, 2019. REUTERS/Philippe Wojazer
- People stroll on a sandbank that is usually covered by the river Rhine as a Dutch tanker ship cruises on the partially dried out waterway in Oberwesel, Germany, August 12, 2018, as water levels remain low due to drought and heatwave hindering freight vessels from sailing fully loaded on the river. Reuters/Wolfgang Rattay
- People enjoy the warm and sun weather as they sit on the banks of the Canal Saint-Martin on June 25, 2019, in Paris. - Forecasters say Europeans will feel sizzling heat this week with temperatures soaring as high as 40 degrees Celsius (104 degrees Fahrenheit) in an "unprecedented" June heatwave hitting much of Western Europe. (Photo by Kenzo TRIBOUILLARD / AFP) (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)
- A woman plays the water as she cool herself down in the fountain of the Trocadero esplanade in Paris on June 25, 2019 with the Eiffel Tower on the background. - Forecasters say Europeans will feel sizzling heat this week with temperatures soaring as high as 40 degrees Celsius (104 degrees Fahrenheit) in an "unprecedented" June heatwave hitting much of Western Europe. (Photo by Kenzo TRIBOUILLARD / AFP) (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)