The Cathedral

The Cathedral is a major location in Fallout. To the outside world, the cathedral is nothing more then an innocent set up for the Children of the Cathedral organization, which tries to bring love and peace to the wastes. Below it, however, lies a secret underground Vault (more specificly, the Los Angeles Vault), which serves as a home and base for the Master.

The Los Angeles Vault was a demonstration Vault built by Vault-Tec to advertise its series of fallout shelters. As such, it was not part of the Vault Experiment and was never assigned a number. When the Great War started, many people took shelter in this Vault, and eventually emerged in 2092, founding the Boneyard.

In 2155, the Master learned the location of the Boneyard Vault. He conquered the inhabitants and set up operations there, and the human cultists began to use the Vault as their powerbase. Eventually, a monumental building known as the Cathedral was constructed above the Vault. The Cultists thus became known as the Children of the Cathedral.

The Cathedral was destroyed in 2162 either by a man known as the Vault Dweller or by the Master himself, when he learned that his super mutants were sterile.

Appearances in games
The Cathedral appears only in the first Fallout. The Los Angeles Vault also appears in Fallout: Brotherhood of Steel, which is totally inconsistant with FO1, since in FOBOS it is a Secret Vault designed for FEV research, and not a demonstration Vault.