Close det: spiral staircasehttps://digitalcommons.usf.edu/saskia/3382/thumbnail.jp
https://digitalcommons.risd.edu/picturecollection_lavieparisienne/1098/thumbnail.jp
A spiral staircase in Baker.https://scholarworks.uni.edu/uniphotos/1149/thumbnail.jp
Detail of tower down from tophttps://digitalcommons.usf.edu/saskia/3969/thumbnail.jp
Interior view upward: core of the double spiral staircasehttps://digitalcommons.usf.edu/saskia/2613/... Read more
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