Worth seeing is the Cathedral of Santa Maria Assunta, built around 1000 and dedicated to the Assumption of the Virgin Mary, with its octagonal baptistery and a portal dating from 1222. The Church of San Michele, built in the 10th century, was once the counts' family chapel from Ventimiglia. Modifications took place in the 11th and 12th centuries; the apse and the campanile were built. Under the church there is a pre-Romanesque hall crypt, the vault of which is supported by columns. One column was a Roman milestone and two others in granite are said to have been part of the remains of a temple dedicated to Castor and Pollux. The old 16th-century Piedmont Gate, with its antique wooden wings and nailed iron fittings, marks the start of the road to the Tenda Pass, which connects Liguria to Piedmont.
The river Roia separates the old town from the other parts of the city in the west. It is spanned in the urban area by two road bridges, a railway bridge and a pedestrian bridge (the passerelle was destroyed in the rainstorm at the beginning of October 2020), further north also by the A 10 motorway bridge.
Also worth seeing are the large Friday market and the flower market. Shortly before the French border, at Capo Mortola, is the Hanbury Botanical Garden.