Each year, millions of so-called “dark tourists” flock to curious sites to witness what remains of their tragic pasts https://on.natgeo.com/2DU4iTx

Each year, millions of so-called “dark tourists” flock to curious sites to witness what remains of their tragic pasts https://on.natgeo.com/2DU4iTx 

https://twitter.com/NatGeoTravel/status/1097692453740703744