9. Poveglia Island – Italy
Often called the most haunted island in the world, it’s no wonder that the Italian government don’t want anybody visiting the island.
Originally an island where sufferers of the bubonic plague were sent to be quarantined from the rest of the population and eventually die, it was turned into a mental institution in the early 20th century.
There are stories about the torture and experimentation that occurred on the island during this time. No wonder you can’t visit a place with such a dark and macabre past.