madcowchef Thanks for teaching me a new word "arcologies" ! I knew the concept but not the name ! Without super advanced technology or magic I don't think that concept would work underground without a totally different kind of Ecology from what we are used to.Of course that would depend on the Genre of the setting you were mapping ! Remove the self-sufficiency and the Idea of a giant pyramid underground is very interesting.
"Aye The skies be clear , the seas be calm and the winds be with us .....
ARGH!! but the damn compass be broken!! "
Capt. Noah Swalter Last voyage of the " Silver Crest"