The amazingly brilliant Dr Alun Salt has published a paper called
The Astronomical Orientation of Ancient Greek Temples in which he demonstrates that temples were oriented when possible to face the rising sun.
This instantly caused me to say, "Uh oh," and go back and read every temple description I'd ever written. Luckily for me I'd only once committed myself, and I got it right that one time because Pausanias had told me the answer.
The title link is to the actual paper. Or you can read Alun's own blog article on same, or else read the article in the Times Online (!), or else read Mary Beard's commentary. Talk about making a splash.
Alun is a regular reader and occasional commenter on this blog. He's even been known to link to me, which frankly I take as a huge compliment because he's a for-real professsional archaeoastronomer and seriously knows what he's talking about.