A Greek Orthodox priest walks at a snow-covered road at Penteli Monastery in northern Athens, Tuesday, Jan. 8, 2019. Schools will remain closed across many parts of the country as a new cold weather front brings freezing temperatures and heavy snowfall. (AP Photo/Thanassis Stavrakis), APTOPIX

The snow covers some parts of the ancient Acropolis hill and Plaka the tourist district of Athens, Tuesday, Jan. 8, 2019. Schools in the Greek capital and many surrounding areas are to remain closed due to weather conditions after snowfall blanketed Athens, with temperatures in some parts of the country plunging well below freezing. (Eurokinissi via AP), APTOPIX

Two local residents try to put anti-skid chains on a car during a snowfall in Myrodafni village, near Ioannina city, northwestern Greece, Friday, Jan. 4, 2019. Temperatures remain below zero in several mountainous regions of the country as heavy snow fell across much of northern and central Greece, but also on the mountains around Athens. (AP Photo/Thanassis Stavrakis), APTOPIX