Dark tourism is when a traveler travels to a destination to learn or mourn at sites of atrocities, accidents, natural disasters, mass genocide or infamous death. There are arguments for and against dark tourism as many think that it is bad practice to profit from such tragedies but then people argue that is is positive as people do it to honour the memory of people affected by the tragedies rather than have them be forgotten. 

Such sites consist of.

1. Chernobyl (Ukraine)
2. Auschwitz (Poland)
3. 9/11 memorial (USA)
4. Pompeii (Italy)
5. The Hiroshima Peace Memorial (Japan)