Chiesa dell'Immacolata

The first documented religious building in Grumo dates from 1515, and was then dedicated to San Nicolò and Sant'Anna. At the pastoral visit of 1538 the small chapel was found to have a graveyard attached. In the eighteenth century the original little church was restored, given a new roof and enlarged with a sacristy.

From 1824 it became an "espositura", a subsidiary of the church of Santa Maria Assunta, the parish church of nearby Mezzocorona. After the middle of the nineteenth century it was no longer large enough for the faithful and the old church was rebuilt entirely on the same site: the solemn consecration, this time with a dedication to the Immacolata, was celebrated in 1870 by the Bishop of Trento Benedetto Riccabona de Reichenfels.

The liturgical reordering carried out between 1968 and 1971 cost the church its historic high altar, which dated from 1865 and was only partly reused for the new post-conciliar altar; the ambo was made by reusing the parapet of the pulpit. The consecration of the new altar was celebrated in 1971 by Archbishop Alessandro Maria Gottardi.