There is a Lutheran Church and a Catholic Church but no Lutheran Catholic Church.
Rome.
The head of the Roman Catholic Church, called the pope, is located in Rome, in the Vatican.
There are several churches known as the Transfiguration Catholic Church. Most of these churches are located in the Toronto area. These include Etobicoke and Markham, Ontario.
Most medieval Christians were Catholic and the head of the Catholic Church was the Pope. Popes were usually located in Rome, but there were times when they were in residence elsewhere. The head of the Eastern Orthodox Church, which was divided from the Roman Catholic Church in 1054, was in Constantinople. There were other church sects but they were much smaller.
Albanian Byzantine Catholic Church Armenian Catholic Church Bulgarian Greek Catholic Church Chaldean Catholic Church Coptic Catholic Church Patriarchate Ethiopian Catholic Church Byzantine Church of Croatia, Serbia and Montenegro Greek Byzantine Catholic Church Hungarian Byzantine Catholic Church Italo-Albanian Byzantine Catholic Church Macedonian Catholic Church Maronite Catholic Church Melkite Greek-Catholic Church Romanian Greek-Catholic Church Ruthenian Byzantine Catholic Church Slovak Byzantine Catholic Church Syriac Catholic Church Patriarchate Syro-Malabar Catholic Church Syro-Malankara Catholic Church Ukrainian Greek-Catholic Church
The Anglican Church is not called the Anglican Catholic Church, and the Catholic Church is not formally known as the Roman Catholic Church even though the Vatican is indeed located in Rome. Your question therefore would more accurately read, can an Anglican priest say Mass at a Catholic Church. The answer is, the Catholic religion does not allow Anglican priests to officiate at their rituals. The Anglican Church, despite being extremely similar to the Catholic Church in most respects, is nonetheless regarded by Catholicism as a heretical schism.
The Pope, head of the Catholic church, lives in the Vatican City, which, while technically its own country, is located within Rome, Italy.
The Santiago de Compostela Cathedral
There is no "Roman" Catholic Church: Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is rarely used by the Catholic Church. The Chaldean Catholic Church is part of the Catholic Church.
Vatican City is not a church but a separate state and the seat of Government for the entire Catholic Church.St. Peter's Basilica is located on the grounds of the Vatican and is the world's largest Catholic Church structure. Notre Dame Cathedral in Paris, France, is another large church.
There is an Orthodox Church and a Catholic Church. There is no Catholic Orthodox Church.