Since it spans the whole floor space there must be a massive cavity in there
this post was submitted on 25 Jan 2025
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What is this thing?
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Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
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Infrastructure, like air handling, electric, elevator system, etc.
Yea, machine room is most likely. Elevator motors, hot water systems, etc
The building likely has walls that go 6-8ft up passed the actual roof. The HVAC units and such sit on the roof exposed to the elements. I've been on several roofs like that
That's just what the defenestrators want you to think