The filtering mechanic of images on this site for the Glasgow School of Art is simply brilliant. Select which room you'd like to filter by on a map of the floor it's located on. The general idea behind the website is great too.
It's great to see so many details create so little noise. The Walker Arts site is like an antidote to the increasing number of sparse and clean sites out there. All these tricks shouldn't work together, but through its careful and considered typography, this site pulls it off.