 Along with such monumental religious edifices as St. Mary of the Angels, St. Hedwig's or St. John Cantius, it is one of the many Polish churches that dominate over the Kennedy Expressway in the Pulaski Park neighborhood of Chicago, Illinois.Holy Trinity Church is the home of the Holy Trinity Polish Mission since 1987.Holy Trinity was founded in 1872 to relieve overcrowding at St. Stanislaus Kostka, the city's first Polish parish.