going from memory JUST on AOTC:
Jedi Council
Palpatine's Office
Padme's Bedroom
Padme's Antechamber
Padme's Fireplace
Kamino landing platform
Coruscant Landing platform
Dex's Diner
Coruscant Nightclub
Wedding Veranda (not a set but a location shot)
Naboo meadow (Location shot)
Naboo Royal Palace (Location Shot, Caserta Palace)
Yoda's meditation chamber
Lars Homestead
I'm sure there's a couple more, but that's a HIGH number of locations. For Episode III, this goes up even more. Not counting miniatures used as background plates, like parts of the Arena Battle.