#20 – Charleville Castle – Ireland
Although this Irish castle looks like castles featured in fairy tales, inside of it one tragic event led to it becoming one of the scariest and most haunted locations in the world.
This enchanting castle is reportedly haunted by the ghost of a girl called Harriet. The girl who haunts this castle was the daughter of the third Earl of Charleville. Hariett haunts the Charleville Castle from the moment she tragically died in it, when she fell from the main staircase and lost her life that same moment.