As odd as it may seem (it certainly was to me) there is a full scale copy of the Parthenon in Nashville,TN, USA including a statue of Athena! Here is the site, but I don't know if I am linking correctly (I guess I better learn the rules if I am going to play the game!):
http://www.nashville.gov/parthenon/
It's a shame they didn't paint it! (EDIT: I mean the Nashville Parthenon. Athena looks great!)
Like in DC, all those stone-gray Roman and Greek edifices don't stand in tribute to a classical obsession with bald marble, but to the banal phenomenon that if you leave something sitting outside for 2,000 years without doing any maintenance, the paint chips off.
According to Archaeology magazine, the museum at Harvard university is hosting a display of repainted Greek artifacts to give people an idea how things might have looked. Peter Connolly, in his illustrated books on Rome and Athens, also gives you an example of how the colors could have looked.
That Hollywood movie "Troy" a few years back was so god-awful that the artistic designers naturally perpetuated the belief in bald temples and bald cities. It makes the Mediterranean people seem downright gloomy and Nordic!
EDIT: I didn't realize the Nashville Parthenon had Athena inside. I'm kicking myself for not bothering to investigate when I was passing through Nashville in 2005. Sounds like a good excuse for trip.