As we gear up for the 2018 Winter Olympics in Pyeongchang, let's take a look at what's left behind when the sporting events come to an end http://on.natgeo.com/2nQDo6Z

As we gear up for the 2018 Winter Olympics in Pyeongchang, let's take a look at what's left behind when the sporting events come to an end http://on.natgeo.com/2nQDo6Z 

https://twitter.com/NatGeoTravel/status/961259886402326530