The Basilica of St. Mark the Evangelist (Basilica di San Marco Evangelista) is a church built in the second half of the 19th century on the site of earlier churches - also dedicated to Saint Mark - that had fallen into ruin. Designed by architect L. Panizzi Moriglio, it was constructed between 1871 and 1883 and consecrated in the same year.

Dominated by a majestic 45-metre-tall-dome, the Basilica towers over the town centre, near the main embankment of the RIver Po, and stands as a true symbol of Boretto’s community. In a striking twist of fate, the dome collapsed in 1988 - exactly 105 years to the day and hour after its consecration. Rebuilt to its original external dimensions but using modern techniques, the new structure is considered unique in Europe and beyond, representing an avant-garde example of contemporary architectural vision. Its plan follows the form of a Greek cross, with a central dome and a deep apse housing the choir. The façade faces south, while the wide nave - running north to south -contains four altars and four small side chapels. The first chapel, to the left of the entrance, contains the Fonte Battesimale (Baptismal Font). Above the crossing rises the hemispherical dome, rebuilt in 1995 with a wooden structure.The east transept houses the Sacro Cuore altar, while the west transept contains the Crocefisso altar.