In Rome, the capital of Christendom, which has some 600 churches with over 1,500 bells in their bell towers, the ancient art of bell-ringing has almost died out.
I'm sure there must be a good many Christians out there who would object to Rome's being described as the capital of Christendom. Just do a Google search of 'pope' + 'antichrist', if you don't believe me. On second thoughts, don't: life's too short.
As a non-Christian, I take great exception to the area I live in being described as part of Christendom. I also take great exception when news reporters use phrases such as a Moslem area of the city or a Jewish area of the city or a gay area of the city. As far as I'm aware, we don't reserve specific areas of cities for people of specific religions, races or sexual orientations: it's a genuinely offensive idea.
If journalists must describe areas in such ways, they should at least use a qualifier such as predominantly to indicate that the current demographic situation has emerged as a result of the contingencies of history, and should not be taken to endorse exclusivity.
Now, I'm going to get off my hobby-horse and pop down into the Lesbian Capital of Britain for a newspaper.