Wondering where the deadliest place on Earth is? It could be Mexico’s Cueva de los Cristales. It’s an underground palace of glittering crystal where the temperature hovers in the 120s and the humidity is 100% — a combination “so deadly that even with respirators and suits of ice you can only survive for 20 minutes before your body starts to fail.”
Originally discovered by accident by miners tunneling deep into the earth, the Cave looks like something out of a Jules Verne story. Explorer Paul Williams went there to shoot footage for a BBC special and posted the resulting photos on his blog.