People walk through the haze from restaurants sprinklers on a hot day in Sarajevo, Bosnia and Herzegovina, June 23, 2021. /CFP

Children play at a fountain in downtown Budapest, Hungary, June 23. /CFP

Children have fun with fountains at a park next to an embankment of the Moscow River in Moscow, Russia, June 23. /CFP

A dog dozes on the pavement on a hot day in Pristina, Kosovo, June 23. /CFP

Dry and cracked earth due to high temperature in Slavonski Brod, Croatia, June 23. /CFP