I’ve been to a bunch of caves in my life and while they are all feature stalagmites and stalactites of various sizes, none have such beautiful — and HUGE — crystals as Mexico’s Cave of Crystals. Sincerely, this is a heckuva site to see.

It was found in about 8 years ago (year 2000) when the mining company pumped out the water out of 30×90 feet cave. It turns out the cave was filled with mineral rich water which encouraged the amazing growth of these beautiful crystals. The temperature inside is ridiculously hot at around 136 degrees Fahrenheit (58C), which is quite unusual for the caves. All the ones I went to were quite cold .

Check out more at National Geographic’s web site.