Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. St. Hyacinth Basilica, formally the Basilica of St. Hyacinth, - historic church of the Roman Catholic Archdiocese of Chicago, located in Chicago, Illinois.It is a prime example of the so-called "Polish Cathedral style" of churches in both its opulence and grand scale. Along with such monumental religious edifices as St. Mary of the Angels, St. Hedwig''s, and St. Wenceslaus, it is one of the many Polish churches that dominate over the Kennedy Expressway at 3636 West Wolfram Avenue,.