Nice post and sounds like fun. I find these locally but never knew there was a site for this. Maybe I can see some I missed?

http://www.roadsideamerica.com/location/

At least they got the Hodag in Rhinelander...

Can I add some more?

Cahokia Mounds, Collinsville IL

The Big Chicken, Marietta GA

The Flippin Jail! Flippin AK

Holy Hill, WI ( and right near Erin for you golf fans)