Well then, I am curious!
Which airport in the US has 8 runways...

The national centerline champion is, well, unique. All eight runways
are 1800 by 150 feet. And the airport is completely symetrical around
four axis.

It is owned by the Navy, in Florida:

http://maps.google.com/maps?f=q&hl=en&geocode=&time=&date=&ttype=&q=N30%C 2%B037'00%22+W087%C2%B008'00%22&ie=UTF8&ll=30.6253 94,-87.139521&spn=0.026958,0.046349&t=h&z=15&om=1

(No doubt you'll need to reassemble the above link to make it work.)

The airport with "only" seven runways is DFW, with three of them at
13400' in length.