Walking tour: Enjoy your choice of Grim Reaper London walking tour. Upgrade: Go solo or upgrade and take a friend! Grim Reaper: Embark on a horror tour of tales including torture chambers, beheadings and hangings with the 'Grim Reaper' tour. Professional feel: Led by knowledgeable guides. Location: The tour conveniently starts outside Tower Hill station (see tour times and location below). Perfect for: Spending the day with a friend or a loved one and learning about the history of the city. Grim Reaper Walking Tour | Regional | Living Social