Entertaining report from Pravda today detailing the ammonites, belemnites, nautiloids and other ancient sealife embedded in the slabs decorating the Moscow metro.

http://english.pravda.ru/science/19/94/377/13527_nautilus.html

(Don't you just love Pravda? Have a look at the link called 'Prehistoric Cyborgs and Modern Man' at the bottom of the page. Crazy Ivan!)