Note: Do not rely on this information. It is very old.
Dodona, in Epirus, one of the most famous and most ancient of Greek oracles. It was the seat of Zeus, and the intentions of the oracle were communicated by the rustling of leaves upon the surrounding forest trees, or by the murmur of a brook that sprang beneath a sacred oak, or by the solemn clang of copper vessels suspended from the temple, said to have been founded by a priestess of Egyptian Thebes, who was sold by the Phoenicians to the Greeks. Constantine Carapanos has explored the ruins, and in 1878 wrote a book upon them.