9. Hell Fire Club on Montpelier Hill, Ireland
The Hell Fire Club on Montpelier Hill in Ireland was a hunting lodge that was built in the year 1725. It soon became a meeting place of some small groups in Dublin who will meet up for devil worship and debauchery. Stories about black masses, animal sacrifice, murder, as well as cloven hoofed men surrounds this structure and now, it is hailed as one of the most popular destination for ghost hunters.
Image Credit: Hardcore Paranormal