Zaha Hadid was a revolutionary architect, who for many years built almost nothing, despite winning critical acclaim. Some even said her audacious, futuristic designs were unbuildable.During the latter years of her life, Hadid’s daring visions became a reality, bringing a unique new architectural language to cities and structures as varied as the Rosenthal Center for Contemporary Art in Cincinnati, hailed by The New York Times as “the most important new building in America sin