Santa Maria Maggiore is an ancient Romanesque basilica church located at the foot of Colle di San Pietro (St Peter Hill) in Tuscania, Province of Viterbo, Region of Lazio, Italy.
A church named Santa Maria Maggiore is first documented here in a Papal bull from the year 852 from Pope Leo IV to the Bishop of Tuscania—records of a consecration date to 1206.
These enclose four thinner columns receding backwards, each with their individual capital, generally Corinthian in appearance but some contain human figures.
In the pilasters flanking the door stand two figures of the Apostles Peter and Paul, partly rebuilt after an act of vandalism.
In the lunette are rectangular bas-reliefs, somewhat haphazardly assembled, depicting the Madonna and Child Blessing and images of Balaam, the Sacrifice of Isaac, and the Agnus Dei-like archetype.