The Hall of Ancients is a location on the planet Cybertron.
History
Transformers: War for Cybertron
Following the acquisition of the Omega Key and the activation of the Geosynchronous Energon Bridge, Megatron used the orbital gun platform known as Trypticon to target Autobot settlements on Cybertron one of which included Zeta Prime's Vaults, the Hall of Ancients and the Code Archives.