This Terrifying Brazilian Island Has so Many Venomous Snakes, No Humans Are Allowed

One of the most beautiful sites in Brazil appears to be Ilha da Queimada Grande, located about 90 miles off the coast of So Paulo. The island is well-known to most Brazilians, but just a few people consider visiting because it is home to up to 4,000 golden lancehead vipers, one of the world's deadliest snakes.