The ultimate expression of organized religion, cathedrals are houses of worship wrought large. Typically able to accommodate ten thousand or more worshippers at a time, a cathedral is often the centre of religious festivals, holy celebrations and sometimes, crusades. Overseen by a high ranking member of the religion’s clergy, cathedrals will also frequently have a significant number of lower ranking priests and occasionally members of militant orders, in residence to see to the needs of the congregation, as well as to enforce the dictates of the leaders of the faith.

Within the wall of a cathedral, there will be multiple prayer halls, libraries dedicated to holy scripture and esoteric texts, meditation chambers, and dormitories for itinerant priests or visitors from afar. Some cathedrals have dark secrets, housing prisons and torture chambers where heretics are put to the question. Depending on the faith, the internal décor may be austere and spartan, although it is much more common for cathedrals to be luxuriously furnished and decorated with works of art to awe and inspire worshippers. Holy relics, both authentic and fake abound, to be regarded with reverence by the faithful. Cathedrals also serve as collection points for wealth, with many religions actively encouraging their devotees to donate frequently in order to secure a place in their version of the afterlife.