I used to work for a company that was located in an underground storage facility north of Pittsburgh. We used to sub-contract scanning pictures for Corbis. Corbis is Bill Gates company, and they are scanning the entire Bettman Archive.
The Bettman Archive moved to that same underground storage facility I worked in (it is miles and miles underground). They moved from Manhattan after 911.
I interviewed for Corbis in 2004, but I didn't get the job. I was given a tour of their preservation facility, which consisted of going through two air locks. It was below zero, I believe, in the storage area. I got to see some really fascinating and historical negatives. The one that I remember most is the actual film negative that was in the camera when that famous picture of the Hindenburg crashing was taken. I was breathtaken by the negatives I saw, and to a person with a history degree, was once in a lifetime.