Luogo - Religious building
Chiesa di San Sergio
Where
Via Raffaello Sanzio, Urbino (Pesaro e Urbino)
Founded in the Byzantine era, outside the city walls, St. Sergius was the center of the first Christian community and the first bishopric of Urbino until 1021. The building has a single nave and has four altars. In the basement is visible ancient Roman cistern.