President Barack Obama Addresses An Audience At The Stavors Niarchos Cultural Centre [Getty Images]

ATHENS, GREECE - NOVEMBER 16: U.S. President Barack Obama waves after his speech at the Stavros Niarchos Foundation Cultural Center on November 16, 2016 in Athens, Greece. President Barack Obama arrived in Greece Tuesday morning on the first stop of his final foreign tour as president, the first visit to Greece. (Photo by Milos Bicanski/Getty Images)

Getty Images News Milos Bicanski