Northampton's Mary Immaculate Center was built as a seminary by the Congregation of Missions of St. Vincent de Paul in 1939. From 1991 to 2005 it served as the location for the Spirituality Year Program for seminarians studying at St. Charles Borromeo in Wynnewood. After the program ended in 2005, the 452-acre property served as a retreat center. It has been underutilized in recent years, according to the archdiocese, and is being marketed by Binswanger.