An altar is a table or platform for the presentation of religious offerings, for sacrifices, or for other ritualistic purposes. Altars are found at shrines, temples, churches, and other places of worship. They are used particularly in paganism, Christianity, Buddhism, Hinduism, Judaism, modern paganism, and in certain Islamic communities around Caucasia and Asia Minor. Many historical-medieval faiths also made use of them, including the Roman, Greek, and Norse religions.
Altar in Roskilde Cathedral beneath by a carved reredos
Horned altar at Tel Be'er Sheva, Israel.
Ancient Greek kylix showing a hoplite offering a sacrifice before an altar, around 480 BC. Ancient Agora Museum of Athens in the Stoa of Attalus
The ancient Altar of Pergamon, reconstructed at the Pergamon museum, Berlin.
A shrine is a sacred space dedicated to a specific deity, ancestor, hero, martyr, saint, daemon, or similar figure of respect, wherein they are venerated or worshipped. Shrines often contain idols, relics, or other such objects associated with the figure being venerated. A shrine at which votive offerings are made is called an altar.
The shrine of the Hodegetria at the Assumption Cathedral in Smolensk, Russia, photographed by Sergey Prokudin-Gorsky (1912).
Shrine to Tin Hau at Repulse Bay, Southern District, Hong Kong.
Chinese Taoist tablet household shrine dedicated to Bixia Yuanjun (1850–1860), Bankfield Museum
Catholic shrine: glass coffin of Saint Catherine Labouré