There are 292 church parishes in the archdiocese of Boston that covers about 30 miles from Boston. In the city proper itself, there are 45 parish churches.
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I believe that there are 30 Catholic parishes (churches) in Rome, Italy. I did a search on Masstimes.org and it listed 30 in Rome.
No. Many Protestant and Orthodox churches also name their parishes for saints.
Wikipedia (at the link below) lists 90 active Catholic Churches in Venice, and an additional twelve on the Islands which are part of Venice.
All churches have catechisms. In the catholic, there is called a Cathechisms in the Catholic church.
I think that there is just 1 in Quebec surprisingly. I am doing a research project on the churches in Quebec and I havge only found 1 Catolic church. Sory if this is not helpful. :P Although there are not as many churches in Québec City as in Rome, the city of the "300 steeples" or Montréal the city of the "100 clochers", there are a great many Catholic churches in Québec's capital city.
In Catholic churches.
The link below lists all the Catholic Churches in London.
Many Orthodox churches have a dome because it represents Heaven. Many Catholic churches also have domes, such as in St Peter's in the Vatican and St Mark's in Venice.
The Catholic Directory lists 42 Catholic Churches in Miami, the list is attached at the link below:
The majority of churches and monasteries in Romania are orthodox. But there are many Catholic or Protestant churches. Do not miss even a few synagogues and mosques.
Well, Maryland had many catholic and christian churches. colonial Maryland, just like today's Maryland had religious freedom. Mostly catholic people came from England.