The Guggenheim has a stunning site. I loved the motorcycle show and the on-line version is very good. The main entry page presents tiny thumbnails of every bike in the show. Click to see pictures, stories, specs, different views. Lots of information is close at hand.
The collection of French art from Russian collections is breathtaking. You simply have to see it. Music is matched to the individual painter. History is well-told, an audio narrative to set the context and written historical info on each canvas. It's easy to figure out. You can zoom in on the pictures. And the art is definitive. Perfecto.