Show of Hands

There is a relatively recently disclosed one in Spain that might be a contender too, and even if it isn't, it is way cool! Site includes 5 minute video (it gets awesome at the 2 minute mark):
www.unique-almeria.com/what-is-a-geode.html

And I thought that 600 lb lady was fat on TLC.

False.

While the Parana Basin is a great place to find very large geodes, the world's largest geode can be found in Ohio, of all places. Crystal Cave, which is on South Bass Island in Lake Erie, is a geode so large that several people can easily

I must be wrong since Michigan is red