Beautiful!
LiminalSpace
Liminal spaces are the subject of an Internet aesthetic portraying empty or abandoned places that appear eerie, forlorn, and often surreal. Liminal spaces are commonly places of transition (pertaining to the concept of liminality) or of nostalgic appeal.
https://en.wikipedia.org/wiki/Liminal_space_(aesthetic)
What is this place?
This place is not a place of honor... no highly esteemed deed is commemorated here... nothing valued is here.
More helpfully, the University of Cambridge Cavendish Laboratory is moving and consolidating their larger cryostats in one hall, with the taller ones going in one of two 1.5m deep trenches, which are covered with wooden boards with cut-outs for the cryostats. The trenches are in a huge slab of concrete to prevent any vibrations getting through to the cryostats. Having installed a test cryostat to check that there are no vibrations, I found out that there were vibrations coming through where there should not be any. So I've been grubbing around under the boards taking measurements in various places to try to work out what is going on.
Woah, nice. That sounds like interesting work.
At the moment the job varies between working on exotic machinery which is used to probe the fundamental forces of nature, and crawling around in holes in the ground.
It's very clean, is what it is. And looks solid, and sturdy. Both are absolute minimums for a place like this, for me.
Once that accumulates detritus, cobwebs, the remains of centipedes and other bugs, it becomes very not a nice place to be. If those supporting beams looked sketchy, hard no.
That's just me, though, not OP. And I have no idea what its purpose is, although it looks like some sort of business crawl space or access area.