11 Breathtakingly Beautiful Places That Will Kill You Horribly

2. Cave Of Crystals - Mexico

These crystals in the caves beneath Mexico can measure up to 40 feet in length, weigh 55 tons and, frankly, have absolutely no business being that big.

As otherworldly as the crystals look, it's actually the cave that they're sitting in that you've got to worry about.

Temperatures down there can top 58°C (136.4°F) at 100% humidity. Not only will this make your hair frizz out like nobody's business, but it will also slowly drown you.

The air in the caves is warmer than the lining of the lungs, so when it hits these membranes, the moisture in the air condenses out, forming droplets and eventually pools of liquid in the lungs.

Cause of death: Drowning.