Sanctuary Temple

From Wikitroid, the Metroid wiki

Sanctuary Temple is a temple built by the Luminoth that is located within the Sanctuary Fortress. It contains the temple itself, Temple Access, Sanctuary Energy Controller Access, and the Sanctuary Energy Controller. It is a huge pit, and, although primarily used for worship, later in the war, it was used as a construction site for two Quadraxis, only one of which was built.