Maybe it's Okkoto shrine in Fujimi town,Nagano prefecture.
Fujimi, Nagano - Wikipedia, the free encyclopedia
In the town,Miyazaki has a　cottage.
Eboshi,Okkoto,Koroku,Kouroku are named after the place names in the town.

Hey, thanks for the suggestion. I may add Fujimi to the list. ...However, I don't think that's the place I saw before. The place I'm thinking of may be Yakushima-it looks very similar-but I remember a specific picture that I haven't seen since. The details are vague, but I feel like I'd know it if I saw it. ...Then again, maybe not. :P
Thanks, everyone for your help! :)

One of the places Miyazaki repotedly based Spirited Away on was the Edo-Tokyo Openair Architectural Museum:

http://www.tatemonoen.jp/

They don't seem to have an English website - but I'm sure if you google you will find plenty of information about it. It's in Koganei park, a little bit out of central Tokyo, but not hard to get to. It's a very interesting museum anyway - lots of old buildings have been moved from other parts of Tokyo, and rebuilt there in the park.

Thanks for that. I'd heard of the park, but I didn't realize that buildings were moved there and rebuilt. That's pretty cool. I love places like that...they seem like they shouldn't still exist, but they do. It's kind of creepy. There's an old park near me that has the same kind of feel: About Glen Echo Park
Unfortunately, they've been fixing it up and modernizing it a little, so it's lost a little of it's "ghostly" charm.