http://www.newsweek.com/what-does-chernobyl-look-like-today-can-you-go-there-1774395

The Chernobyl Exclusion Zone in Ukraine remains one of the most radioactive areas of the world.

On April 26, 1986, a meltdown of a reactor in the Chernobyl Nuclear Power Plant caused the world's worst nuclear disaster. The meltdown caused two devastating explosions, which saw radioactive debris and fuel pour out into the surrounding environment. The area is still highly radioactive today.