This looks like it should be split to multiple buildings - Senate Building, Atrium, and Statehouse. See https://www.ohiostatehouse.org/about/capitol-square/senate-building + https://www.ohiostatehouse.org/about/capitol-square/atrium + https://www.ohiostatehouse.org/about/capitol-square/statehouse as well as https://digital-collections.columbuslibrary.org/digital/collection/p16802coll28/id/169699