During the week between the days 7 and 15 of September 1959 takes place in the city of Otterlo, Holland, the celebration of the last International Congress of Modern Architecture (CIAM), with the participation of forty three architects from twenty different countries. Among them is Louis Kahn who comes to the event presenting two of his projects for the city of Philadelphia. He will be responsible for giving the final conference of the Congress with the talk of closure. Anticipating a few days to the dates of the congress, he travels to France where he remains six days, during which he will visit the cities of Albi, Carcassonne and Ronchamp.