Cathedral

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A **cathedral** is a Christian church that is the office of a Bishop or Archbishop. As cathedrals serving as the office, they are central church of a diocese or archdiocese. Only those Christian denominations have cathedrals. Cathedrals can be found in the Roman Catholic, Eastern Orthodox, Oriental Orthodox, Anglican as well as some Lutheran churches. 

In the Greek Orthodox Church, the terms "kathedrikos naos" (literally: "cathedral shrine") and "metropolis" (literally "mother city") are both used to describe the same thing. "Metropolis" is more common, but both terms are officially used.
 
There are variations on the use of the term "cathedral"; for example, some pre-Reformation cathedrals in Scotland now within the Church of Scotland still retain the term cathedral, despite the Church's Presbyterian polity which does not have bishops. As cathedrals are often particularly impressive buildings, the term is often used incorrectly to refer to any large important church. Some churches are bigger than the cathedral.

Several cathedrals in Europe, such as Cologne, and in England at York, Norwich and Southwell, are referred to as *Minster* (German: *Münster*) churches, from Latin *monasterium*, because the establishments were served by canons living in community or may have been an abbey, prior to the Reformation. The other kind of great church in Western Europe is the abbey.

## Definition 
The word cathedral is derived from the Latin noun "cathedra" (*seat* or *chair*), and refers to the presence of the bishop's or archbishop's chair or throne serving as his office. In the ancient world, the chair was the symbol of a teacher and thus of his role as teacher, and also of an official presiding as a magistrate and thus of the role in governing a diocese or archdiocese.

The word cathedral, though now grammatically used as a noun, is originally the adjective in the phrase "cathedral church", from the Latin "ecclesia cathedralis". The seat marks the place set aside in the prominent church for the head and is therefore a major symbol of office.

Many cathedrals are very old.

## Cathedrals which are not the seat of a bishop
Some churches are called *cathedral*, but they are not the office of a bishop or archbishop. This  may be because the way the church is organised changed over time. This is the case for Our Lady of Sorrows Church, Poprad, in Slovakia, for example. In Slovak language, this church is called *cathedral*. It is part of the Roman Catholic Diocese of Spiš. This diocese was re-organised several times. Currently, the cathedral of the diocese is St. Martin's Cathedral (Spišská Kapitula). Churches that formerly were a diocesan seat may be called concathedral, co-cathedral, or pro-cathedral.

## References 
## Gallery 

File:San Giovanni in Laterano Front.JPG|The Archbasilica of St. John Lateran in Rome is the office of the Pope as Bishop of Rome.
File:Cathédrale Saint Pièrre et Paul de Douala1.jpg|Cathedral of Saints Peter and Paul in Douala, Cameroon
File:Coventry Cathedral Ruins with Rainbow edit.jpg|The remains of Coventry Cathedral, UK, bombed during the Second World War
File:Mezquita de Córdoba desde el aire (Córdoba, España).jpg|The Cathedral of Córdoba, Spain includes Moorish architecture.
Image:Cathedral Brasilia Niemeyer.JPG|Metropolitan Cathedral in Brasilia, Brasil
Image:Alexander Nevski Cathedral 2006-1.JPG|Saint Alexander Nevsky Cathedral in Sofia, Bulgaria
File:Cologne cathedrale vue sud.jpg|Cathedral of Cologne, Germany. It is a UNESCO World Heritage site and one of the most famous churches in Germany.
Image:Speyerer Dom Altrheinschleife.jpg|Cathedral of Speyer, the biggest romanesque Church in the world that still stands. The abbey of Cluny was bigger but was destroyed. 
Image:Christ the Savior Cathedral Moscow.jpg|The Cathedral of Christ the Saviour in Moscow, Russia