As in many office towers, a core containing stairs, elevators, and bathrooms lies at the center.

A "link" module contains lobbies, elevators and stairs.

The shafts contained elevators, stairways, heating systems and all the utilities.

The first floor of the building will contain the main lobby and elevators.

The first floor is open space, broken up by the main support columns and three building "cores" which contain elevators and other essential infrastructure.

The towers contain elevators which are used to transport silicate building material to the construction sites at geostationary orbit.

The slender concrete core would contain elevators, fire stairs and risers for plumbing and power.

A service core containing stairs, elevators, bathrooms and storage is clasped to the shed's western end.

The only parts of the building actually on the ground level were the columns, which contained the entrances and elevators for the building.

The towers contain elevators, stairs, and bathrooms; meeting rooms are set into pods.