This made it to the front page of HN a couple months back, but it's worth posting again: http://www.atlasobscura.com/places/lake-nyos-the-deadliest-lake-in-the

This made it to the front page of HN a couple months back, but it's worth posting again: http://www.atlasobscura.com/places/lake-nyos-the-deadliest-lake-in-the-world http://www.atlasobscura.com/places/lake-nyos-the-deadliest-l...