Tour: Get ready for an eerie visit to some of London's spookiest spots! Ghosts & executions: Enjoy the Ghosts & Executions tour and learn the spine-chilling tales from the past. London Mystery Walks: Go on a guided walking tour with an experienced guide from London Mystery Walks. Valid: Thursdays, 8pm (Ghosts & Executions) outside St Paul's Tube Station Exit No.2 Perfect for: Those wanting to see a different side of London and discover its dark history. London Ghosts & Executions Walking Tour | Regional | Living Social