Probably the largest room in the world!
When Temple works was built it had the single biggest room in the world!
The columns are hollow inside, they carried rainwater from the roof to the basement for the massive boilers.
The roof was covered in grass to to retain humidity and prevent the linen thread from drying out and becoming unmanageable. Sheep really did graze on the roof to keep the grass short. Temple works is a grade one listed structure.
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