Some possible answers to the following:
"Concept art of 666 Fifth Ave is important.
But why was it denied?"
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The bottom of the design looks like a mosque.
"Why was it really denied?"
???
"Heart attacks are deadly."
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On 31 March 2016, Hadid died of a heart attack in a Miami hospital, where she was being treated for bronchitis.[48][49] Days before she had visited her One Thousand Museum under construction in Miami.
"How was she connected to Iran?"
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Upon receiving his Bachelor of Architecture, Arian Hakiminejad joined the Institute for Advanced Architecture of Catalonia (IAAC) in Barcelona where he graduated in both urban design and smart solar houses. After graduation he started collaborating with ON-A, an architecture firm in Barcelona, while continuing his research.
Hakiminejad has conducted over 10 international workshops collaborating with architects, fashion designers, and engineers.
Currently, he works at Zaha Hadid office in London where he conducts practical research in the fields of ‘Parametric Design & Complex Geometry Rationalization.’
Hakiminejad has developed various algorithms for generating facade components on a non-constant curvature surface for an-award winning metro station project in Riyadh.
https:// financialtribune.com/articles/art-and-culture/55040/zaha-hadid-architects-to-hold-workshop-in-tehran
"Imagine the view from the center of the world."
Hmmm. The Middle East? Mesopotamia? The Cradle of Civilization?
https:// www.dezeen.com/2017/03/23/zaha-hadid-architects-666-fifth-avenue-skyscraper-compared-glass-dildo-architecture-offices/