I received an EMail from Charles M. Cook relaying the following information which I found to be extremely fascinating. I hope you do to. With his permission, here is what he has sent me so far. I applaud you for having the capacity to know what is interesting and cool.
Mail boxes come right behind outhouses as interesting subjects.
Outhouses, as known in the past are an endangered species. What I bring to you takes us underground, where I have spent many hours. Ain't dead yet. Mind you, most of my experience has been in Louisiana. Y ou are a man after my own heart.