Haunted London Walking Tour: Ghosts and Criminal History. Set out in the evening chill of London for a haunted walking tour of the city’s sinister past. Discover London’s criminal history, from the Middle Ages to the Victorian era, while an entertaining guide shares macabre tales of murder and mayhem. Amble past hidden alleyways as well as famous sites, from Viaduct Tavern to Smithfield Market. This 2-hour twilight tour uncovers mysteries said to be lurking down every street! Book and Save 20%: Haunted London Walking Tour: Ghosts and Criminal History.