TROT HQ is the official headquarters of Terrance, when TROT began, and from which TROT is controlled.

It also has a series of scientific facilities, some hidden, some public. This gargantuan building is a symbol of power and prosperity to the whole world, as well as a threat to their enemies. The fine lines between the concept of the world are usually discussed in here, at one point Jeeves was involved with its creation.