San Pietro is a Romanesque and Gothic-style, Roman Catholic church just outside Tuscania, province of Viterbo, region of Lazio, Italy.
The façade has a large rose window, decked with mosaics, hedged at the corners by the symbols of the four evangelists, and flanked by reliefs with elaborate carvings of plants, menagerie of animals, and a complex iconography of saints and figures of the old testament.
Below is a loggietta and on the ground is a sculpted main portal with a large rounded arch. The nave is flanked by rounded Romanesque arches and leads to a presbytery with a Ciborium for main altar. The presbytery has a geometric mosaic floor. The crypt has gothic tracery.
Wikipedia https://en.wikipedia.org/wiki/San_Pietro,_Tuscania
Coordinates 42°24'45.88" N 11°52'42.09" E