Where does Christian faith come to bloom? The CDWDS speaks of non-church “sanctuaries,” but being on the lookout for God in some very ordinary places (the curia mentions places “not less important”) is important, too:
19. Apart from the church, sanctuaries -which are sometimes not churches- afford important opportunities for the expression of popular piety, which are often marked by particular devotional forms and practices, among which the most significant is that of pilgrimage. Together with these sacred places, which are clearly reserved for public and private prayer, others exist which are often not less important: e.g. homes, places of life and work. On certain occasions even the streets and squares can become places facilitating the manifestation of the faith.
The full document, the Directory on Popular Piety and the Liturgy, is online at the Vatican site.