Dont bother with the Chattanooga zoo, you'll be in and out in 30 minutes if it's anything like when i was there last time, Nashville or Atlanta zoo better. Or how about the big aquarium in atlanta?

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Books just wanna be FREE! See what I mean at:
http://bookcrossing.com

My other favorites
www.paperbackswap.com
www.wheresgeorge.com
www.geocaching.com