Gjøvik Hall - The world’s largest underground cavern | Science of YOG with Tom Scott

Welcome to the world’s largest underground cavern hall. Originally created for the 1994 Winter Olympic Games, the Gjøvik Cavern Hall will be used at the forthcoming Youth Olympic Games in Lillehammer. Before the competition begins, Tom Scott goes behind-the-scenes and explains how this venue was built. Subscribe to the official Olympic channel here: How to make snow: Discover more about the science of Lillehammer 2016: Tom Scott’s channe