The infobox credits Gary Haney and Skidmore, Owings and Merrill as architects, while the text names SOM and Ramshir and Callison. SOM was also structural engineer. Construction started in 2005, the tower topped out in 2010, and it was completed and inaugurated in 2011, at a cost of 500 million dollars.
The article calls it the tallest curved concrete skyscraper in the world. Its height is 1,358 feet (414 m), with the roof at 1,207 feet (368 m). The infobox gives 85 floors but lists the top floor as 83. Floor area is 3.1 million square feet (290,000 m²), and there are 43 elevators.
Flared concrete walls rise from the corners of the core over the full height. Glass wraps the east, north and west sides, and the south facade is brushed Jura limestone.
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