La chiesa di Santa Limbania sorge nell'area di Castelvero, all'estremità sud-orientale del paese, su un imponente sperone roccioso che domina il corso del fiume Orba. L'attuale facies architettonica, la cui origine come revealed by archaeological excavations could be traced back to medieval times, is due between the sixteenth and seventeenth centuries.
The dedication to the nun in Cyprus, an object of veneration in Genoa from the fourteenth century, was probably by the Grimaldi family of feudal fortress, also, was the patron saint of Santa Limbani mule "who were shuttling between Genoa and Rocca Grimalda starting from the homonymous Voltri church. "
The church has a single room and closed by a semicircular apse flanked by two side chapels. The external structure is characterized by a high statement, signed by a roof with two salient scanned in two sets defined by slightly projecting pilasters, the brick of the second order is pierced by three windows rectangular.
The interior of the church, a barrel-vaulted nave, is of great historical and artistic interest, in addition to fine high altar and two side altars in the chapels - dating from the late seventeenth century - the apse is frescoed with an interesting cycle representing the Assumption of the Virgin in the top center, the Eternal Father, under the almond Madonna surrounded by angels with trumpets, to the sides in the bottom two groups of Apostles with Christ and the background hills with castles, trees and lakes. In the central sector is lower on the shrine which appears the following inscription: Assunpcio. Marie. Virginia. 1526. Last septebris. Luchino. Ferari. De. Castelago Faciebat. A
Luchino Ferari seem to belong, Gianfranco Cuttica writes of Revigliasco, even "the frescoes decorating the apse at the bottom of the right wall and the center representing the Madonna and Child with Saints Sebastian and Rocco, two other saints on the left side (and repainted) and on the right side Sao Paulo and Santo not well identified, very spoiled. "