The Chamber and Caucus Room are circular to support the consensus-style government. Translation booths surround the chamber for translators to provide simultaneous translation of the territories' 11 official languages for all Members. Skylights ring the Chamber and Caucus Room as sunlight and daylight come from 360 degrees during the summer. The wall behind the Speaker is of hand-tooled zinc which mimics nearby rock formations. The stand in front of the Speaker's chair is for the parliamentary mace which, in addition to indicating the authority of the Crown, incorporates ivory walrus tusks and wood from the ill-fated ships of the 1845 Franklin expedition.