The Athens Acropolis, Greece’s most visited tourist attraction, was closed to the public during the hottest hours on Thursday for the second day running, as the country’s earliest-ever heat wave neared its peak. The Athens Acropolis, Greece’s most visited tourist attraction, was closed to the public during the hottest hours on Thursday for the second day running, as the country’s earliest-ever heat wave neared its peak. Environment Phys.org – latest science and technology news stories