LostUser

I've always found Varosha in Cyprus quite interesting. Due to the fact that no-one can decide which half of the island the city belongs to it's been fenced off for about 30 years with no-one allowed in

52 Pictures From The Abandoned City Of Varosha In Famagusta, Cyprus | djmick: V2

Also Centralia in the states. In the 1960s a fire started in an underground coal mine, the ground became so unstable (and hot) that the town had to be abandoned. The fire's still burning today and they predict it will do for the next 250 years.

Centralia, Pennsylvania - Wikipedia, the free encyclopedia

Both places are mentioned in the top ten here

Top 10 Interesting Abandoned Places - Listverse