It's located at the corner of Bloomingdale and Wood, down by Wicker Park.
St. Mary of the Angels is a historic Roman Catholic church originally founded in 1899. Construction began in 1899. It's architecture is built in the Polish Cathedral style and mimics the layout of St. Peter's Basilica in Rome. It is constructed of red brick with white marble accents. It has two bell towers and a large dome which is about seventeen stories high. The elaborate decorations include angelic statues on the roof and ledges. Its artistry, size, and beauty are impressive. The church takes up an entire city block, and it's enormous proportions are commented upon more than once in the series. Harry says St. Marry's is "more than a church. It is a monument". He senses a quiet power, deep, warm and reassuring .
In the series Edit
It is the church of Father Anthony Forthill.
In Grave Peril, Harry sends Lydia, who is afraid of a hostile spirit, there to seek protection. Later, Michael takes Harry to the church. There, they discover that something tried to get inside all night and had smashed several cars in the parking lot.
In "Something Borrowed", Georgia and Billy Borden got properly married in St. Mary by Father Forthill, after their planned big wedding in the Lincolnshire Marriott Resort Hotel had been invaded by Jenny Greenteeth.
In Proven Guilty, Harry Dresden, Thomas Raith and Mouse help Charity Carpenter bring the children to the church after an attack by phobophages. Harry had already sent Nelson Lenhardt there earlier that evening. When Nelson had called, he seemed extremely frightened, saying that something was following him. While there, Harry uses his Sight on Nelson and Daniel Carpenter and finds that both have been psychically attacked by the phobophages. He also Sees that Nelson has two tiny, neat round holes in his temples just like Rosanna Marcella. Harry puts things together and deduces that Molly Carpenter is responsible for the tiny, neat holes in Nelson and Rosanna in order to help them with their addictions. And that Molly may be somehow responsible for the phobophages. Harry struggles with his guilt over unknowingly diverting the phages back at Molly. Father Forthill (savvy to the supernatural) lends an ear and offers consolation. Way up in the top pew of the empty Chapel's balcony, Harry has a long discussion with Charity, Molly's mother. It is revealed that she once had magical talent that she let wither and die. The magic has passed on to Molly, being her daughter. Molly is not the one who summoned the phages, they were sent from the Nevernever via mirrors using Molly as a beacon by an as yet unknown entity. A Fetch (a particularly strong phobophage) from the Winter Court has Molly in Faerie. Harry and Charity plan how to rescue Molly (Ch. 30, 31, and 32, Proven Guilty).