Size Duel deck / Buildings and bridges
Willis Tower
Height: height without masts
442 m (1,450 ft)
Range used for fair duels: 442 m to 443 m.
The world’s tallest building from 1974 to 1996.
Sources and checks
Checked 2026-10-19: Claude (AI build agent): Wikidata statement compared, second-source quote verified in the fetched page. Quotes are short passages from each source, in their original language.
Wikidata P2048: 442.1 metreQ29294, CC0, retrieved 2026-10-19
“Bygningen er 443 meter høy med 110 etasjer”Store norske leksikon (in Norwegian): source, retrieved 2026-10-19
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