cavernous

I think the outside is really interesting but inside is cold & cavernous.

It has been proven to increase worker performance and mood, yet companies continuously rent office space in dark, cavernous buildings.

A good aquifer in certain cavernous regions of the US might stay about 55 degF year round, regardless of outside surface temperature.

The stained glass windows created an ethereal kaleidoscope of colors in the cavernous interior.

I work in a pretty cavernous studio where I never have trouble getting wifi, but there's no cell signal.

Modern flash carts like EasyFlash and clones allow for absolutely cavernous cartridge images.

The new residents only fill a small part of the cavernous building.

Indeed, the archive has cavernous branches, in the literal sense you desire.

And there's established mail order dealers with cheap overnight shipping and cavernous warehouses (i.e.: Digikey) that have the volume to keep those margin very thin.

I wouldn't think GPS would actually work very well, given how cavernous office buildings are--no clear view of the sky for GPS.

Just imagine how capable future telescopes will be now that we have multiple super-heavy launch vehicles with cavernous payload fairings in development.

It's such a huge, cavernous gulf in magnitude that I have no idea what point you're trying to make with your last paragraph.

Second impression: the "desks" were in fact folding Costco tables, arranged in ranks of around 10 and about 6-8 files through a cavernous space, edge-to-edge.