Rescue workers had to transport tourists from the Acropolis citadel in Athens to ambulances on Thursday as temperatures soared. And the unforgiving heat is set to intensify in the coming days. Greece's national weather service EMY on July 10 said a six-day heatwave would grip Greece starting July 12. But Italy is bearing the brunt of the heatwave, with Sicily and Sardinia set to see 48.8C temperatures, according to the BBC. This year has already seen a drought in Spain and fierce heatwaves in China as well the United States.