It's amazing what you come across when browsing deviantArt. For example take a look at the
inside of this well. It is apparently to be found at the Regaleira Palace situated at Sintra in Portugal. I am so sure that someone will find it intriguing enough to be inspiring for something (I don't know what mind you (
)) for NwN that I have taken the liberty to do a google search for images of said
Palace, the results of which can be found here.
Hope this is of use to some one.
TR