One of the first built works of the Argentinian architect Amancio Williams was the house for his father, the musician and composer Alberto Williams. This small concrete building spans a creek on the father’s property in Mar del Plata. His design proposals in 1945 for a new international airport, to be built on the Río de la Plata and connected to the city via causeway, were rejected. He built three Corrientes Province hospitals and was invited to display his ideas on acoustics at La Sorbonne. The Dean of the Harvard Graduate School of Design, Walter Gropius, organized exhibits of his works in 1951 and 1955, on which latter occasion Williams was a guest lecturer. During the 1950s, he developed designs based on what he called hollow vaults. These were concrete pillars that, by their design, could drain rainwater while supporting the building above as stilts. He later employed the concept for the 1966 Bunge y Born exhibit at the La Rural Exposition grounds and in 1968 for the German Embassy, both in Buenos Aires, as well as for a monument to the reconstruction of Berlin.