The splendid, 19th-century church of Église Saint-Ambroise was designed by architect Theodore Ballu in a Romanesque revival style, with some additions of Gothic and neo-byzantine elements, popular at that time. Built on the site previously occupied by an older church, Saint-Ambroise is an elaborately crafted and pioneering structure of its time.
The church was erected in a period between 1863 and 1868, in the times when using metal frames and expanding a large interior was unheard of. In front of the church a small public garden includes a sculpture honouring sixty years of Catholic Aid (a charity). On the 18th of March 1996 the church was occupied by about three hundred African immigrants who demanded regularisation of their immigration status.