2. Snake Island
Those with a death wish might be intrigued, but the rest of us don’t want to venture onto Snake Island (Ilha de Queimada Grande), home of the extremely venomous golden lancehead viper along with many other deadly species. Apparently its venom melts human flesh, which is one of the reasons tourists aren’t clamoring to visit here. Located 90 miles from the Brazilian city of Sao Paolo, Snake Island is closed to the public because of its immense danger. Visits are actually banned by the Brazilian government, and only a few brave scientists ever dare to visit. The 110-acre island is home to roughly 4,000 snakes, making this one of the most deadly islands on the planet.