The Basilica Minore of Our Lady of Piat is a revered pilgrimage site where the centuries-old brown Madonna of Our Lady of Piat is enshrined.

The site attracts a large number of devotees, particularly during the Sambali Festival from June 23 to 39, and on July 1 and 2, when the feast of Our Lady of Piat is observed.

The Basilica features a plain facade with a tall belfry on the left, and is situated on a hill to prevent flooding from the seasonal overflow of the Chico River.

The church is primarily constructed of red bricks, a common material for churches in Cagayan Valley, unlike other historic churches in the Philippines that are made of limestone and coral stone.

Inside, the church has a wooden curved ceiling adorned with historical images and narratives along the top of the walls. The altar displays the Blessed Virgin Mary, protected by a glass case.

There are also verandas within the church that add to the shrine’s elegance. At the back, a staircase leads to a window behind the Virgin Mary’s case, allowing devotees to touch her dress.

Next to the Basilica is a museum, which contains various artifacts related to the Basilica and Our Lady of Piat. The sanctuary is also surrounded by the parish convent and life-sized representations of the Stations of the Cross.