In Nashville, you can see a 1:1 recreation of the complete Parthenon.

From Wikipedia :
"The Parthenon in Nashville, Tennessee is a full-scale replica of the original Parthenon in Athens. It was built in 1897 as part of the Tennessee Centennial Exposition."

Having seen the original, I love the idea of being able to walk around in it. The one in Athens is incomplete and you can't get too close.