The El Faro Towers (Spanish: Torres El Faro "Lighthouse Towers"), also known as El Faro I/II, when referring to the complex individually, or El Faro Complex, when referring to the pair as a whole, are a highrise residential complex of two, twin interconnected skyscrapers located in the neighborhood of Puerto Madero, in Buenos Aires, the capital and largest city of Argentina. The El Faro Towers are made of glass, most specially used for the skyscraper's windows, and reinforced concrete. Although the two towers did not commence their construction at the same time, the first and second skyscrapers' construction ceased in 2003 and 2005, respectively.