The church is a perfect example of Aranese Romanesque architecture. Its three aisles are separated by sturdy columns that support the barrel vaulting for the massive roof. Its three apses are decorated with bands, showing the influence of the Lombard Romanesque style. The north doorway, which features archaic relief work in its tympanum, depicting the Creator surrounded by the Sun, the Moon and symbols of the Evangelists, should not be missed on any account.