Poveglia Island, Italy. We’ve written about this one before, but this island off the coast of Venice is the most haunted place in Italy. Over its years, it’s been a plague victim dumping ground, a graveyard and a mental hospital where strange experiments are conducted. Its rumoured that the mad doctor in charge of the experiments was pushed off the bell tower by unseen hands and suffocated by a fog after surviving his fall. The island’s been left to rot since 1968, and no one is permitted to visit.