6. Pripyat, Ukraine
Pripyat was established on Feb. 4th, 1970 in Ukraine near the border of Belarus as a Soviet nuclear city. It was home to many of the workers who worked in the nearby Chernobyl nuclear power plant, which melted down disastrously in the 1986 Chernobyl Disaster. After being evacuated, Pripyat remains a radioactive ghost town that can only be visited through guided tours.