I found this thread which I found pretty interesting. It is very long but it a good read if you have some time on your hands.. I suggest grabbing a bag of popcorn and a coke(or beer):

http://www.dsmtalk.com/forums/showthread.php?threadid=50674&perpage=25&pagenumber=1

Here is the page on the Missle Silo I got out of that thread though it was pretty cool so figured I would post it also.. :

http://triggur.org/silo/

Anyways enjoy..

Very interesting to read actually...

yes. i'm a huge fan of urban exploration.

and jinkies it scares me to no end to think about what's going on in those mountain facilities.

:) it was long but interesting :)