SOM designs Buenos Aires office building with "urban window" to waterfront

SOM has revealed its design for a new office complex on the waterfront in Buenos Aires, which will comprise two towers joined by bridges topped with green terraces.
One of the glazed towers that make up SOM's Catalinas Rio project rises 29 floors, while the other features 22 storeys.
Two bridges extend the between them and slot into each tower like a jigsaw puzzle, leaving a large hole that frames views to the waterfront behind. SOM describes the feature as an "urban window".Each bridge comprise