THE CHURCH St’Christopher’s is a single - nave Church, like many other 400th century churches, built by the Olivetani order (e.g. St. Vittore al Corpo di Milano Church). The Church is characterized by a cross vault ceiling which covers the single – nave and by three side chapels on each side. A semicircular apse, where the monk’s high-backed chair used to be located, closes its wide choir. A wide dome with drum and windows is inserted in the crossing between the transept and the choir.