There was a series on one of the educational channels regarding the subject of beauty and the Golden Section entered into it. The research of Dr. Stephen Marquandt was part of the basis behind the series.
He has a very interesting web site at
http://www.beautyanalysis.com. In there, he also discusses the Golden Section in relation to faces and which Karin talks about above in relation to a painting.
Especially fascinating is the section on Marquandt's site that shows how the less symmetrical a face, the less aesthetic we consider it to be and he gives examples with his "map" placed over the faces.