St. Alphonsus Church was built by the Irish Catholic community of New Orleans in 1855. New Orleans had many Catholic communities namely French, Irish and German. St. Alphonsus has Italian architecture with beautiful stained glass windows. After the merger of the Catholic parish, St. Alphonsus stopped conducting masses which are now held only at St. Mary's Assumption Catholic Church. St. Alphonsus is a cultural center with museum about immigrants. It has also been featured in one Anne Rice's novels: The Witching Hour.