The Tower of London
The gloomy, ancient fortress at the heart of the City of London has more ghosts than a Pac Man convention. Among them is said to be Guy Fawkes, (AKA Guido Fawkes) the Catholic soldier of fortune who was discovered sitting on a stack of barrels in the cellars of the Palace of Westminster.
Fawkes was tortured horribly (as revealed in a famous comparison of “before” and “after” signatures) in the Tower, before his execution just over the road from the building he’d wanted to radically remodel.
Fawkes’ screams and cries were said to have been heard for decades after his death. The room in the Tower where he was held is now named after him and his ghost is one of many unhappy spirits to linger in one of London’s most atmospheric and paranormally investigated buildings.