 Although much time has passed since the completion of the church and although the majority of those who helped to build it have passed on , Mt . St. Peter Church still stands as a Roman Catholic church located at 100 Freeport Road in New Kensington , Pennsylvania . The church is located along the Allegheny River and is approximately 25 miles ( 40 km ) north @-@ east of the city of Pittsburgh . It is a member of the Diocese of Greensburg . The congregation was founded by Italian immigrants in the early 1900s and the building that now stands as Mt . St. Peter Church was built by its members . In 1998 , the building applied for inclusion on the National Register of Historic Places as part of an Multiple Property listing that included several properties in New Kensington . 
