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Description
SCP-4220-1: a semi-industrial silo built entirely out of beryllium copper. It is approximately half a kilometer in diameter and half a kilometer deep, and consists of one hundred floors (separated by a spiral staircase in the center of the silo). Each floor contains several continuous rows of cubicles, arranged in a spiral pattern extending out from the staircase. The staircase wraps around a large pneumatic tube (one meter in diameter) that extends down from the top floor's ceiling.
scp-wiki.wikidot.com/scp-4220h…

Description
SCP-4220-1: a semi-industrial silo built entirely out of beryllium copper. It is approximately half a kilometer in diameter and half a kilometer deep, and consists of one hundred floors (separated by a spiral staircase in the center of the silo). Each floor contains several continuous rows of cubicles, arranged in a spiral pattern extending out from the staircase. The staircase wraps around a large pneumatic tube (one meter in diameter) that extends down from the top floor's ceiling.
scp-wiki.wikidot.com/scp-4220h…