The Aon Center is a supertall skyscraper in the northeast corner of the Chicago Loop, designed by a partnership of the architecture firms Edward Durell Stone and Perkins and Will and completed in 1973 as the Standard Oil Building. Standing 1,136 feet tall with 83 floors, it is the fourth tallest building in Chicago, surpassed only by the Willis Tower, the Trump International Hotel and Tower, and the St. Regis Chicago.
Facts
Building TypeSourced to the subject's own account Completed YearSourced to the subject's own account Height (m)Sourced to the subject's own account Building Type
Building Type (category)Sourced to the subject's own account Connections
Has Building Type
Entity-backed identity for the building-type enum value this building already carries, resolved to an architecture concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The building-type fact itself stays on the building unchanged.
Sources
1. Aon Center, Chicago (Wikidata)
Wikimedia FoundationWikidata date-of-opening/inception statement (1973)
Wikidata item Q271695, date of official opening (P1619): year 1973
Wikidata instance-of (P31) statement (Skyscraper)
Wikidata item Q271695, instance of (P31): skyscraper
Wikidata height (P2048) statement (EntityId 343899): 346.3
Wikidata item Q271695, property P2048 (height): 346.3 m (converted to metres, preferred/normal rank, non-deprecated)
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