Naica Crystal Cave – Mexico
A team of international scientists explore a Mexican cave filled with giant crystals. With temperatures near 120 degrees Fahrenheit (48.8 Celsius), and over 80 per cent humidity, the cave is one of the deadliest...
A team of international scientists explore a Mexican cave filled with giant crystals. With temperatures near 120 degrees Fahrenheit (48.8 Celsius), and over 80 per cent humidity, the cave is one of the deadliest...