carl corey
Deity
I know that you can get all sorts of things using espionage, including IIRC line of sight to a civ's cities. But has the religious line of sight been removed? The way it worked up to Warlords was that if you adopted a religion and owned the holy city you could see other civs' cities with the same religion. You didn't need the shrine for this. I haven't yet checked to see if with the shrine built this is still available.