Byzantine sacred architecture

ancient city in Serbia

thumb|The triple apse of an Orthodox Church. The altar is in the larger central apse, the prothesis in the apse to the right, and the diaconicon in the one to the left. The diaconicon (; Slavonic: diakonik) is, in Eastern Orthodox and Eastern Catholic Churches, the name given to a chamber on the south side of the central apse of the church, where the vestments, books, etc., that are used in the Divine Services of the church are kept (the sacred vessels are kept in the prothesis, which is on the north side of the sanctuary). Diaconicon and prothesis are collectively known as pastophoria.

A cross-in-square, crossed-dome, tetrastyle, or quincunx floor plan was the dominant form of church architecture in the middle and late Byzantine Empire. It featured a square centre with an internal structure shaped like a cross, topped by a dome.

recess used for preparation of the Eucharist in Orthodox churches

thumb|The plan of Zvartnots Cathedral, [[Armenia, 7th-century]]

thumb|A synthronon at Hagia Irene in Constantinople (modern Istanbul, [[Turkey).]] The synthronon (; plural: σύνθρονα, synthrona) is a semicircular tiered structure at the back of the altar in the liturgical apse of an Eastern Orthodox church that combines benches reserved for the clergy with the bishop's throne in the centre.

Pastophorion (; ) is one of two chambers within an early Christian and Eastern Christian church building used as sacristies—the diaconicon and the prothesis.

A parecclesion (Greek: παρεκκλήσιον, translated as "Chapel," romanized: parekklesion, lit. 'side-church') is a side mortuary chapel found in early Byzantine churches.

thumb|upright|A reconstruction of the templon of St. Paul's and Peter's basilica in Jerash (ancient Gerasa) A templon (from Greek τέμπλον meaning "temple", plural templa) is a feature of Byzantine churches consisting of a barrier separating the nave from the sanctuary near the altar.

Tas-Silġ () is a rounded hilltop on the southeast coast of the island of Malta overlooking Marsaxlokk Bay and close to the town of Żejtun. Tas-Silġ is a major multi-period sanctuary site with archaeological remains covering 4000 years, from the Neolithic to the ninth century. The site includes a Megalithic temple complex dating from the early third millennium BCE and a Phoenician and Punic sanctuary dedicated to the goddess Astarte. During the Roman era, the site became an international religious complex dedicated to the goddess Juno, helped by its location along major maritime trading routes,

recurrent element in architecture of Russian churches