The document discusses 7 beautiful churches located in Milwaukee, Wisconsin. It describes the Basilica of St. Josaphat as the oldest worship space in Milwaukee, constructed by Polish immigrants. It also mentions the Annunciation Greek Orthodox Church, designed by famous architect Frank Lloyd Wright, and Calvary Presbyterian Church, also known as the "Big Red Church" due to its red stone exterior. Finally, it provides brief descriptions of Grace Evangelical Lutheran Church, Immanuel Presbyterian Church, Saint John Evangelical-Lutheran Church, and St. Paul's Episcopal Church, highlighting their architectural styles and histories of worship in Milwaukee.