The text in English reads: The cryptoportico of the forum - the forum, an architectural complex of several buildings and divided into a public and a sacred area, formed the administrative, political, legal, economic and religious center of Colonia Iulia Equestris. The cryptoportico, which was discovered beneath this street, was a long semi-basement gallery that served as a sub-foundation for the three elevated porticoes that separated the sacred area around the temple from the forum. Apart form its role as an architectonic support, the precise function of this gallery - with the shade and freshness that it provided - is not known. It was completed in about 50 AD, and a statue in Carrerra marble, most probably depicting the Emperor Augustus, was discovered there in 1997.
On the map:Blue first phase of construction, Red second phase of construction, White Roman road network

The area sacra of the forum was discovered in 1940. Enough architectural fragments were found to allow archeologists to to build a model of the forum. Some of the pieces were erected in the Place des Marroniers in 1958 for the 2000th anniversary of the founding of Nyon.