#3 Mukachevo Castle
Mukachevo Castle in Palanok, Ukraine, was built sometime in the Middle Ages. The prince was concerned about the availability of water if the castle found itself under a long siege. He ordered his men to dig a well, but they couldn’t reach water even after working for years. Legend has it that out of desperation, the prince offered a bag of gold to anyone who struck water. The Devil immediately appeared and confirmed the deal before jumping into the well. Upon completion the Prince had no gold to give to the Devil. The Devil was dissatisfied with the reward and jumped into the well after a heated quarrel with the prince. Ever since, the Devil has been making sounds to scare people away from the well.