In rural Butler, Pennsylvania, hidden away 220 feet under the hills is one of the most valuable priceless photo collections in the world. That’s where a company called Iron Mountain helps store Corbis gigantic collection of historical photos in a refrigerated, maximum security vault.
We’ve taken a couple of looks at this vault in the past, once in 2011 and again in 2014. The 6-minute video above is yet another look at Iron Mountain’s fascinating facility: in addition to showing the photo collection in the mines, it takes a step back and gives us a better picture of what the whole underground operation is like.
In case you missed them the first time around, here are the previous videos we shared that look more closely at the photo collection kept in the Iron Mountain mine: