The Hellfire Club in Dublin, Ireland and Ireland in the 1700s

The hellfire club still exists in Dublin today, but the club house does exist and it's on a place called Manpeleor Hill. This building was built in 1725 as a haunting lodge by a fellow called William Connolly. The members of this hellfire club used to have their mad fucking RGs and drinking parties and engage in full-on in devil worship. They would invite guests at their dinner just to freak them out, to scare the shit out of a common person who thinks that they're in the presence of the devil.