Just saw this artwork on a wall near Piazza Santa Maria in Trastevere... almost missed it, as it blends so well with the grafitti (tho' is grafitti itself, art expressed in a different place?)

And talking of art out of context, just seen this story on the wires about a code unravelled in the ceiling of the Sistine Chapel. Now archived, but a search should locate the bare bones of it.

http://news.yahoo.com/s/nm/arts_michelangelo_dc;_ylt=Ah6DiSjVybCg7Jal9WRLtd2s0NUE;_ylu=X3oDMTA2bm5xNHVjBHNlYwNtcA--

Heritage: a subjective science?