The Spanish-born engineer unveiled his latest refinements to the controversial design in Chicago on Monday.
If built, the 2,000ft tower will contain around 1300 luxury apartments. More on the tower in the Chicago Tribune.
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- Featured event: Venice Architecture Bien…nale
- ArcelorMittal Orbit by Anish Kapoor
- Vertikale Kletterhalle Brixen by Stadtla…bor and Wolfgang Meraner
- Metal-recycling plant by Dekleva Gregori…c Arhitekti
- Apartment in Kamitakada by Takeshi Yamag…ata Architects
- Sliver House by Boyarsky Murphy Architec…ts slots into a three-metre-wide space
- Werkhuis by Loos Architects
- Concrete house by Architecture Brio that… straddles a stream in India
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