Civil buildings and monuments Noteworthy are the Palazzo Abbaziale di Sant'Ambrogio, of medieval origin (1176) and the city walls with a quadrangular structure, dating back to the 13th century. The Palazzo del Feudo di Sant'Ambrogio, built in the 13th century, was enlarged in the 18th century. Among the more recent buildings are the Town Hall (1871) located in Piazza XXV Aprile, the industrial complex of Maglificio Fratelli Bosio (1871) and the Antiche Mura Theater (19th century).
Religious buildings and monuments There are numerous religious architectures present in the municipal area: among them, the main one is the millenary abbey of the
Sacra di San Michele, built in the period between
983 and
987. A little below in Borgata San Pietro is the Sanctuary of Our Madonna di Fátima (Sant'Ambrogio di Torino), built in 1715 as a church dedicated to Sant'Anna and in 1943 became the first Italian sanctuary dedicated to the Madonna di Fátima; the church of
San Giovanni Vincenzo, built in 1763 by the architect
Bernardo Vittone; the church of San Rocco (Sant'Ambrogio di Torino), dating back to the 17th century and now home to the "San Rocco cultural center", and the church of the Beata Vergine delle Grazie (Sant ' Ambrogio di Torino), from 1720. The ruins of the ancient church of San Pietro are still preserved, dating back to the 11th century and located in Borgata San Pietro, while from the 13th century it was an ancient church romanesque style, of which the trace is still visible on piazza IV Novembre. Along the walking way named “mulattiera” to San Pietro there is a fifteen
Via crucis built in 1943.
Towers In the village there are some medieval towers: • Bell tower of Sant'Ambrogio (11th century); • Municipal Tower of Sant'Ambrogio (13th century); • Tower of the walls of Sant'Ambrogio (13th century); • Tower della Dogana di Sant'Ambrogio (18th century); • Tower of the Palazzo del Feudo di Sant'Ambrogio (18th century). Inserted in the complex of the
Sacra di San Michele is the Torre della Bell'Alda (12th century). Also worthy of note is the MFB Tower of the Bosio Brothers Manufacture of Sant'Ambrogio, built in 1924 in the complex of the Maglificio Fratelli Bosio and destroyed in 1984.
Fountains The village is characterized by several fountains, including that of «del Paschè» and that of «della Rustà», both built in 1751 along the course of Via Umberto I. Others are the CAI UGET Fountain (20th century) at the 3rd Cross of the S.Ambrogio-San Pietro Via Crucis, the Lombardi Pilone Fountain (19th century) at the 10th Cross of the S.Ambrogio-San Pietro Via Crucis, the Fountain of Piazzale di San Pietro (19th century) in Borgata San Pietro, the Fontana S.Anna (19th century) in Borgata San Pietro. Some have been closed such as the Fountain of Via Umberto I ° (19th century) closed in 1996, and the Fontana del Mulino (19th century) demolished in 1987. == Infrastructure ==