Door To Hell

Kevin pointed me towards this:

Note the tiny person walking along at the beginning to give you a sense of size. Supposedly that hole has been burning for 35 years in Turkmenistan or Uzbekistan (articles disagreed). After a collapse, it started leaking natural gas. The locals choices were: die of asphyxiation or start it burning. Luckily they weren't Americans - most of us would have just moved to a better neighborhood and pretended there weren't any poisons spewing forth.