I just also like the idea of having a secret hideout :D
I mean, that well would be an easy place to start, since I dont have to do any vertical digging. :)
I've been considering building some kind of shelter/panic room from inside my old well, which has not been in use for 30 years. And i think if I want a place to hide, either from bad weather or someone that would be an ideal place. Also it would be able to be used as a fallout shelter.
The...