The Island Where Snakes Melt Your Flesh

Off the coast of Brazil lies Ilha da Queimada Grande, better known as Snake Island.

It's considered the most dangerous island on Earth. Why? It's home to between

2,000 and 4,000 golden lancehead vipers, one of the deadliest snakes in the world.

Their venom is so potent that it can kill a human in under an hour. It literally melts

flesh. And here's the nightmare scenario. There's an estimated one snake per square

meter. You can't take a single step without encountering one. The Brazilian government

has made it illegal to visit Snake Island. The only exceptions are for scientific research teams,

and even they require special permission and must bring a doctor. The last lighthouse