If you enjoy thrills, horror, and humor during a visit to Europe or the U.K., you should definitely stop by their Dungeons. In this group of attractions, visitors learn about the dark history of the city they are visiting.

In London, you’ll step back into the world of Jack the Ripper, and in Edinburgh, you’ll experience the era of the plague or cholera. You’ll walk (or sail) through dark, eerie settings populated by real creatures and discover how gruesome murderers and events shaped history. Or how the villains, in turn, were tortured and killed.

So this isn't for the faint of heart, but unfortunately, it really happened…