| 
 
 
			
			 from YouTube Website 
 A team of international scientists explore a Mexican cave filled with giant crystals. 
 With temperatures near 120° Fahrenheit (48.8° Celsius), and over 80% humidity, the cave is one of the deadliest environments on earth. Without specialized suits and equipment, the scientists would die in minutes. 
 
			Their mission: to unlock the 
			secrets of the mysterious ancient crystals, some of the largest ever 
			discovered. 
 
			 
 |