Cathedral of Santa Maria Assunta, located in Cathedral Square in the center of Ventimiglia, - is one of the major religious sites of the city. According to some historical documents, the Cathedral dedicated to the Assumption of Mary, was built between the 11th and 12th centuries on the ruins of the earlier Carolingian cathedral. The latter, in turn, was erected on the site of the ancient pagan temple dedicated to Juno - so according to local legend.

In the early Middle Ages the cathedral had a single nave, and only in the 12th century it was completely rebuilt and got two side chapels. By the 13th century is the construction of the portal with pointed arches, three apses (large and two small) and the presbytery. At the same time, the roof of the church was replaced by a semi-cylindrical vaults with half-columns in the Romanesque style.

The side of the small left apse is the Baptistery dedicated to Saint John the Baptist (San Giovanni Battista) and dated to the same time as the cathedral. It has the shape of an octagon, and in the 17th century has been divided into two levels. On the ground around the perimeter of which there are eight niches was set baptismal font of the 13th century and even more ancient bowl in the form of mortar and the upper level was occupied by the Baroque chapel of Santissima Sacramento. In 1967-69-m respectively Cathedral of Ventimiglia has been carefully restored and re-opened to the public. Its interior is decorated with a picture today of the 14th century depicting the Madonna and Child with brush Barnaba da Modena, and in the chapel of De Giudici kept the painting "The Ascension of the Virgin Mary," the 17th-century Giovanni Carlone brush. Also pay attention to the body set up in 2008, the year of the older parts of the body.