Church

A church, like a monument, is a defining structure (not to mention required structure) in a town. When a player sees a massive cathedral in the center of a town or a gothic building set in the side of a mountain, they should know exactly which town it belongs to.

As a Requirement
The church is the megastructure that all towns are required to build at a high rank. The time and effort spent on this building will determine whether or not a town is able to join the highest ranks of domestication.

Purpose
As far as purpose, currently the church has little function. It will be a center for quests in that server admins will place quest NPCs there to allow players to go through your town. In the future, there will be more purpose for the church, such as animal sacrifices to increase spell power, but currently there is minimal purpose.

Examples
I will post pictures of towns and their churches here as towns reach the upper ranks. Currently it's blank, but don't expect it to stay that way for long.