From catacombs to churches built from bones, these holiday destinations are definitely not for the faint-hearted
If sunbaking by the beach is just too tame for you, have you ever considered a snake-infested island instead? We're guessing no, which is lucky - because it's deemed so dangerous it's illegal to set foot there. Read more about Snake Island - and six equally terrifying parts of the world - in our gallery above.
Would you dare? A night in Paris' catacombs with 6 million skeletons
Beauty in the desolate: Felix Forest's haunting new works
Lights, lakes and luxury: the new way to see the Northern Lights