I put this in a similar thread over in the In Nomine forum, but thought it might also be useful here:
Submerged church reappears
The ruins of a medieval stone church, submerged in the 1960s with the filling of the Sau reservoir near Barcelona, reappear in the fall of 2007 when drought causes the reservoir to dry up. I suspect a fair number of people can come up with something interesting to do with some medieval ruins that reappear after forty years flooded, mm?