I don't know how architecturally viable this
would be, but why not build skyscrapers in the
opposite direction? In other words, build deep
into the earth instead of up into the sky. There
would certainly be less vulnerabilty to a
building that was surrounded by solid bedrock
on all four sides.

I suppose it would probably take much longer
to build one of these "reverse skyscrapers."
(Hmmm... what would you call such a
building? An "earthscraper," maybe?) And you
wouldn't have the breathtaking view that
someone at the top of the Twin Towers had.
Claustrophobic people would probably refuse
to work there. Still, mightn't the benefits
outweigh the negatives?

Gri"a society of tunnel rats"shny