"I find City of the Dead ideal if you want to be genuinely creeped out: they run several tours through the underground vaults and are the only company with access to the ominously named Black Mausoleum and Covenanter’s Prison, two of the city's most haunted spots. These locations are favorites of the Mackenzie Poltergeist, which has hundreds of supposed encounters, and City of the Dead is one of my favorite tours in the city. Prices start at 19 GBP." - Matthew Kepnes