- Toallowadometorestaboveasquarebase,eitheroftwodeviceswasused:thesquinch(anarchineachofthecornersofasquarebasethattransformsitintoanoctagon)orthependentive."Themostdistinctivefeaturewasthedomedroof.ToallowadometorestaboveasquareBase,eitheroftwodevice...
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