Question: On what riverbank is the neighborhod located that contains the El Faro Towers?
Sentence (from "Puerto Madero"): Puerto Madero, also known within the urban planning community as the Puerto Madero Waterfront, is a barrio (district) of the Argentine capital at Buenos Aires CBD, occupying a significant portion of the Río de la Plata riverbank and representing the latest architectural trends in the city of Buenos Aires.
Relevant evidence: Yes