The first church of Volon in Zevio, dedicated to the Holy Trinity, was built in the last years of the 15th century by Count Francesco Miniscalchi on land he owned. The current church, dedicated to the Holy Trinity and Our Lady of the Rosary, was constructed between 1929 and 1930.
It features a gabled façade in neo-Romanesque style, built with exposed brick. In the center, the entrance portal opens, topped by a decorated lunette. The following inscription is engraved on the architrave: "PRAISE TO THE HOLY TRINITY." On either side, there are two narrow single windows. Higher up, a rose window, with a decorative toroidal frame, illuminates the interior of the building.
The church presents a rectangular plan layout with a single wide nave and a raised quadrangular presbytery, concluded with a semicircular apse. On either side of the triumphal arch, two chapels house the altar of the Blessed Sacrament, to the left, and the altar of Our Lady, to the right. The apse wall is decorated with a mosaic depicting "Risen Christ" (G. Celada, 1962).
The interior of the church, with its sober and austere lines, features a spatial layout modulated in its longitudinal development by four large arches set on smooth pilasters, which simultaneously define the bay divisions of the longitudinal façades of the nave. On the side walls, narrow single windows open with artistic stained glass.