Igreja de Nossa Senhora do Ó de Águas Santas

Igreja de Nossa Senhora do Ó is a Romanesque church with two interior naves and rounded arches built from stone. The triumphal arch contains ancient capitals repurposed from earlier buildings, showing how materials from different periods were integrated into the structure.

The church was built in the 13th century using stone, with builders incorporating ancient Late-Roman capitals from earlier structures into the triumphal arch. This practice shows how medieval builders reused available materials and acknowledged the craftsmanship of what came before.

The church is named after the Virgin Mary and its stone walls reflect centuries of local faith and devotion. Visitors can observe how religious purpose and skilled stonework have shaped the building throughout its long existence.

The church sits in Águas Santas within the town of Maia and is reachable on foot from the local center, with the stone architecture visible regardless of weather. Visitors should wear appropriate clothing and can contact local offices to ask about access times before planning a visit.

The church was expanded and modified multiple times, yet builders carefully preserved the original stonework instead of replacing it. This approach is unusual among medieval Portuguese churches and reveals the craftsmanship that continued to be respected across generations.