FIRST AIRED: August 25, 2016

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>> Before satellites, weather balloons, and barometers, this was how merchants forecast the weather more than 2,000 years ago. Ancient Greece's Tower of the Winds in Athens reopening to the public for the first time in nearly two centuries. It's the world's oldest weather station and was also used to tell the time, even in darkness.
Despite attempts by Lord Elgin to relocate it to Britain, the tower sits on a slope of Athens' ancient Acropolis Hill. No one knows who funded its construction, but the tower is made almost entirely of the same rare marble reserved for temples like the Parthenon. Historians believe it was looted by Romans, used as a Christian Church, and then converted to a Sufi Muslim place of worship.
Natural disasters and pollution also took their toll, but the outlook now is a bit brighter. The tower's undergone a two year makeover to return it to almost its former glory.