Otter's Rock

Your general point stands, though over time and shifting fortunes these church buildings do accumulate.

I guess the US is still too young to have a bunch of (former) cathedrals in fairly insignificant towns that used to be significant and used to have a bishop, but now they don't. Or in a metropolitan region some smaller town has the cathedral because that used to be the bigger one in the twelfth century but never grew past thirty thousand but a bigger city that's now over ten times the size is still organized under its now tinier neighbor.

And sometimes these formerly important churches aren't even all that impressive because the last time it had a bishop was ages ago, only the locals still call it something pompous like a "Dom" (though admittedly anything called "cathedral" tends to be big at least).