(image © designboom)
At Smart Room Barcelona we enjoy Architecture and expos. "Vertical City": is an interesting exhibit at the Chicago Architecture Biennial 2017, which displays 17 skyscrapper conceptual designs delivered by 17 international studios.
This expo commemorates the contest for the Chicago Tribune design, in 1922. The original competition required the participants to send renderings; but this "revival version" required the production of a scale model.
(Full article by designboom: www.designboom.com/architecture/chicago-architecture-biennial-vertical-city-tribune-tower-competition-09-14-2017/)