A church building, often simply called a church, is a building used for religious activities, particularly worship services. The term in its architectural sense is most often used by Christians to refer to their religious buildings; they can be used by other religions. In traditional Christian architecture, the church is often arranged in the shape of a Christian cross. When viewed from plan view the longest part of a cross is represented by the aisle and the junction of the cross is located at the altar area.

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    Hagia Sophia

    The Hagia Sophia in Thessaloniki, Greece, is one of the oldest churches in that city still standing today. It is one of several monuments in Thessaloniki included as a World Heritage Site on the UNESCO list.

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    Hagios Demetrios

    The Church of Saint Demetrius, or Hagios Demetrios, is the main sanctuary dedicated to Saint Demetrius, the patron saint of Thessaloniki (in Central Macedonia, Greece), dating from a time when it was the second largest city of the Byzantine Empire.

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    High Cathedral of Saint Peter, Trier

    The High Cathedral of Saint Peter in Trier is a Roman Catholic church in Trier, Rhineland-Palatinate, Germany. It is the oldest cathedral in the country. The edifice is notable for its extremely long life span under multiple different eras each contributing some elements to its design, including the center of the main chapel being made of Roman brick laid under the direction of Saint Helen, resulting in a cathedral added onto gradually rather than rebuilt in different eras.

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    Holy Trinity Church, Zhovkva

    Wooden Holy Trinity Church was built in suburb of Zhovkva, Ukraine in 1720 on the place of a church that burned down in 1717. The structure consisits of three wooden naves and a brick sacristy.

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    Igene Evangelic Lutheran church

    Igene church is one of the few wooden churches in Latvia, built in mid-18th century and still successfully serving its original purpose. The shape of the dimension, layout and proportions of the church are archaic bearing evidence of preservation of ancient traditions of wooden craft.

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    Itsukushima Shrine

    Itsukushima Shrine is a Shinto shrine on the island of Itsukushima, best known for its "floating" torii gate.

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    Kazan Cathedral

    Kazan Cathedral or Kazanskiy Kafedralniy Sobor, also known as the Cathedral of Our Lady of Kazan, is a cathedral of the Russian Orthodox Church on the Nevsky Prospekt in Saint Petersburg. It is dedicated to Our Lady of Kazan, probably the most venerated icon in Russia.

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    La Laguna Cathedral

    The Cathedral of San Cristobal de La Laguna or Catedral de Nuestra Senora de los Remedios is a Catholic cathedral in Tenerife, Spain.

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    Matthias Church

    Matthias Church is a Roman Catholic church located in Budapest, Hungary, in front of the Fisherman's Bastion at the heart of Buda's Castle District. According to church tradition, it was originally built in Romanesque style in 1015, although no archaeological remains exist.

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    Mosque – Cathedral of Cordoba

    The Mosque–Cathedral of Cordoba, also known as the Great Mosque of Cordoba, whose ecclesiastical name is the Cathedral of Our Lady of the Assumption, is the Catholic cathedral of the Diocese of Cordoba dedicated to the Assumption of the Virgin Mary and located in the Spanish region of Andalusia.

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    Ohno Church, Nagasaki

    Ohno Church, one of the "Churches and Christian Sites in Nagasaki", a group of thirteen sites in Nagasaki Prefecture and Kumamoto Prefecture relating to the history of Christianity in Japan.

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    Orthodox church St. Paraskeva, Radruz

    The church in Radruz is one of the most precious wooden churches in Poland and was erected by master carpenters who used the experience of the late Gothic carpentry.

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    Paoay Church

    The Saint Augustine Church, commonly known as the Paoay Church, is the Roman Catholic church of the municipality of Paoay, Ilocos Norte in the Philippines.

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    Petajavesi Old Church

    The Petajavesi Old Church is a wooden church located in Petajavesi, Finland. It was built between 1763 and 1765, when Tavastia was still a part of Sweden. The bell tower was built in 1821. It was inscribed in 1994 on the UNESCO World Heritage List.

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    Pilgrimage Church of Saint John of Nepomuk

    The Pilgrimage Church of St. John of Nepomuk at Zelena Hora is a religious building at the edge of Zdar nad Sazavou, Czech Republic, near the historical border between Moravia and Bohemia. It is the final work of Jan Santini Aichel, a Bohemian architect who combined the Borrominiesque Baroque with references to Gothic elements in both construction and decoration.

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    Rock-hewn Churches of Ivanovo

    The Rock-hewn Churches of Ivanovo are a group of monolithic churches, chapels and monasteries hewn out of solid rock and completely different from other monastery complexes in Bulgaria, located near the village of Ivanovo, 20 km south of Rousse, on the high rocky banks of the Rusenski Lom, 32 m above the river.

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    Royal Sanctuary of the Christ of La Laguna

    Royal Sanctuary of the Christ of La Laguna is a Catholic church located in the city of San Cristobal de La Laguna, Tenerife. The sanctuary is famous for the fact that houses the image of the Cristo de La Laguna, very devotional image around the Canary Islands.

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    Ruins of St. Paul's, Macau

    The Ruins of St. Paul's are the ruins of a 16th-century complex in Macau including what was originally St. Paul's College and the Church of St. Paul also known as "Mater Dei", a 17th-century Portuguese church dedicated to Saint Paul the Apostle.

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    Sagrada Familia

    The Sagrada Familia is a large Roman Catholic church in Barcelona, designed by Spanish architect Antoni Gaudi.

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    Saint Anthony Church

    Saint Anthony Church is consider to be the first church of Macau. The original Saint Anthony church was built in 1565.

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    Saint Gayane Church

    The Church of Saint Gayane is a 7th-century Armenian church in Vagharshapat (Etchmiadzin), the religious center of Armenia. It is located within walking distance from the Etchmiadzin Cathedral of 301.

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    Saint Hripsime Church

    Saint Hripsime Church is a seventh century Armenian Apostolic church in the city of Vagharshapat (Etchmiadzin), Armenia. It is one of the oldest surviving churches in the country.