Vault of Knowledge
From Populous Wiki
These ancient Vaults are tall buildings which store the knowledge of an Enemy Shaman. The symbol at the top of the building indicates the type of knowledge contained within the structure. If the Shaman gains entry to a Vault, the Enemy's knowledge will pass to her permanently. Remember that the Vault of Knowledge will often be heavily guarded.
Tutorial Speech
<html5media height="720" width="1280">https://ts.popre.net/files/mp3s/Tutorial%20-%20Worshipping%20vaults%20of%20knowledge.mp3</html5media>