A Greek flag flutters in the wind as tourists visit the archaeological site of the Acropolis hill in Athens, Greece July 26, 2015. REUTERS/Ronen Zvulun/File Photo GLOBAL ... more 
A Greek flag flutters in the wind as tourists visit the archaeological site of the Acropolis hill in Athens, Greece July 26, 2015. REUTERS/Ronen Zvulun/File Photo GLOBAL BUSINESS WEEK AHEAD - SEARCH "GLOBAL BUSINESS AUG 29" FOR ALL IMAGES? less 
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Reuters | Photo By © Ronen Zvulun / Reuters / REUTERS
Sun, Aug 28, 2016 9:35 PM EDT