The Catholic Church is NOT a denomination.  It is the Bride of Christ.  THE CHURCH.  Every other Christian sect is a denomination.  And incidentally, every other sect broke off in some way, from the Catholic Church.  Its silly to think that any "denomination" has a better understanding of Christianity then the church started by Jesus Christ and handed down through time by an unbroken line of succession.  Do you really think that the MAN that started your religion (Luther, Calvin, Knox, etc.) knew BETTER than the Catholic Church and its history?  No, those religions are created in the image of some man, the Catholic Church in the image of Jesus!  Silly and dangerous to worship anywhere else.