14. Koh Tao Island, Thailand

People spend a lot of time online researching on where to spend their next vacation, looking for the cheapest deals on hotels and booking the best-priced plane tickets to get them to their dream destination. One of the most popular places tourists visit is Thailand, with its beautiful beaches and islands made popular in the 2000 film, The Beach, starring Leonardo DiCaprio.

What many people don’t know is that one of those islands, Koh Tao, holds a dark secret, a terrifying mysteries still waiting to be solved. In the past decade, 7 tourists have mysteriously died violent deaths on what locals now call Murder Island, with some blaming the deaths on the Mafia and some even speculating that a serial-killing family is responsible. What we do know is this, searching around for Koh Tao might ruin your holiday plans if you are considering Thailand as a destination.