Former Cathedral Church of Christ the King was a 49-rank Aeolian/Skinner, the second to last organ built by the Skinner Company. At the entrance, the cathedral featured bas-reliefs executed by Leo Lentelli in 1922 for the facade of the Straus Building at the corner of Michigan Avenue and Jackson Boulevard in the City of Chicago from 1922 to 1952. Mown into the field at the northwest and southwest corner of the Cathedral grounds were two labyrinths. The last dean of the cathedral was the very Reverend Cynthia L. Black, who also served as president of the Episcopal Women's Caucus from 1995-2000. The Cathedral included office space that
Malabar Diocese of the Church of South India styles. On top of the arched entrance porch, there is a three-tiered turret. The church has a main hall and a cluster of rooms to the back and the sides. These are roofed with tiles. The church also has a pipe organ which was a gift from the St. Ayden’s Church in Cheltenham, England. The pioneering founders of the CSI Cathedral Church were Reverend Dr. Hermann Gundert, Reverend Samuel Hebich and Reverend J.M. Fritz. The CSI St. Mary's English Church was built by the British. The original plan of this church was drawn in Gothic design by the then British