Chicago is a largely Catholic city, a place where some neighborhoods are known simply by the name of the local parish.
With the first missionaries arriving in 1615, Quebec was, almost from its founding, a Catholic city.
For more than a year, battles about abortion rights have been a dominant theme in this heavily Roman Catholic city of nearly 300,000.
Other Irish settlers came because of its reputation as a Catholic city.
Opposition to abortion runs deep in this heavily Roman Catholic city.
So while many in this largely Catholic city of 328,000 backed the protesters' stance, most seemed relieved when the tumult ended.
Now this heavily Catholic city has to contend with the problem.
To some lay Catholics in this deeply Catholic city, it was the last straw.
It is a heavily Catholic city where thousands of protesters from around the country demonstrated for two weeks in 1992.
Security forces in armored cars and with explosive-sniffing dogs kept up patrols throughout the overwhelmingly Catholic city of 100,000.