To see the most amazing interactive panorama of a most beautiful library, just click right here [THIS IS A NEW LINK AS ORIGINAL ONE WAS BROKEN]. You move round it just by moving the cursor. If anyone knows where this library is, please say!
This comes from a site called Papervision.org -- I'm not entirely sure what it is, but I think it must be a software development company. You can see some more of their demos here, and clicking here will produce a fabulous undersea panorama complete with fishes which is also interactive (if it isn't, click on the little fish in the bottom right corner, where you can also make it full screen by clicking the rectangle).
Many thanks to Adele Geras for this link, which appeared originally on normblog