Willis Tower biþ nama þæs hēafodgebyldes þæs nīƿan bē Chicago. Þæt Willis Tower ƿæs ūtƿorpen of ǣghƿæþrum ge þǣm Americaniscan timborƿyrhtan Bruce Graham ge burhƿyrhtan Fazlur Khan and gebrǣded of þǣm Skidmore & Owings company.

Willis Tower
Willis Tower
Willis Tower
Eallgemǣna getācnunga:
Stent be:Chicago, Geānedu Rīcu American
Steall:
Onginn geweorca:1970
Ende geweorca:1974
Gemearcung:
Hīehþu:442 m.
Gehāl hīehþu:527 m.
Hīehþu be þæce:442 m.
Brǣdu:
Flōrgetæl:108
Flōrgerūm:
Timborwyrhta:Fazlur Khan and Bruce Graham
Timborgecynd:Heofonscrapiend
Āgend:Willis Insurance Agecy