RT @archpics: Rookery Building staircase, Chicago https://t.co/MmGyZTiUrV - The Calculator Guide from Twitter

Rookery Building staircase, Chicago pic.twitter.com/MmGyZTiUrV

— Architecture (@archpics) May 24, 2018

from Twitter https://twitter.com/GuideCalculator

May 24, 2018 at 09:25AM
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