Talk:Volume 4 Character Short/@comment-25110963-20161003193157/@comment-26397825-20161004085012

We were specifically told by Glynda that religion exists. From the transcript of Fall:

Ironwood: And so our brotherhood chose to remove the Maidens from the public eye, allowing their existence to fade away into legend.

Goodwitch: The things we're telling you go against hundreds of years of human history and religion.

Ironwood: No one would want to believe us. It would cause an uproar.

So by Glynda's own words we know that religions do exist on Remnant, which means that the building, which is in the stereotypical shape of a church, could very well have something to do with a religion.