Puente de la Mujer

And seems Chicago Spire is also a project from Calatrava says Wikipedia? On the background btw is the Dutch Embassy and the Hilton Hotel (where they are building a second tower)

"The Puente de la Mujer (Spanish for "Women's Bridge") is a footbridge in the Puerto Madero barrio of Buenos Aires, Argentina that spans "dique 3" (dock 3). It is of the Cantilever spar cable-stayed bridge type and is also a swing bridge, but somewhat unique in is asymmetrical arrangement. It has a single mast with cables suspending a portion of the bridge which rotates 90 degrees in order to allow water traffic to pass. When it swings to allow watercraft passage the far end comes to a resting point on a stabilizing pylon.

It was designed by Santiago Calatrava and is similar to his Puente del Alamillo and Sundial Bridge at Turtle Bay, but with a forward, rather than a reverse angled cantilever, as is seen in those bridges. The footbridge was donated by Don Alberto L. Gonzalez to the City of Buenos Aires in thanks for 60 years of work in the country. Started in 1998, it was completed on 20 December 2001."

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