I'm quite taken by the Walker Art Center's new homepage.
Some people will find it way too busy. Me, I like how they seem to have expanded their remit - not just a homepage for their gallery, but a homepage for the visual and performing arts. I like, for example, how articles from other sites are getting pulled through to the page.
I also like all the small touches - little features where you can flick through three panes, the three views for opening hours, this little feature on the far left that highlights different content by theme.
It's a bit super-user, but I enjoy how it rewards exploration. The more you adventure through it, the more it reveals to you - a nice metaphor for art itself, no?