Luxurious Columbarium

The Columbarium of Pomponius Hylas is a particularly fine ancient Roman example, rich in frescoes, decorations and precious mosaics. Roman columbaria were built underground.
Today's columbaria can be either free standing units, or part of a mausoleum or another building. Some manufacturers produce columbaria that are built entirely off-site and brought to the cemetery by a large truck. Many modern crematoria have columbaria. Fine examples of these are the columbaria in Pere Lachaise and Golders Green.
In other cases, columbaria are built into church structures. One example is the Cathedral of Our Lady of the Angels (Los Angeles, California), which houses a number of columbarium niches in the mausoleum built into the lower levels of the Cathedral. The construction of columbaria within churches is particularly widespread in the Czechoslovak Hussite Church. An example can be seen at the Church of St Nicolas in Old Town Square (Prague). In the Roman Catholic Church, although traditional burial is still preferred, cremation is permitted provided that the cremated remains are buried or entombed. As a result, columbaria can be found within some Catholic cemeteries.
Columbaria are often closely similar in form to traditional Buddhist temples which from ancient times have housed cremated ashes. In Buddhism, ashes of the deceased may be placed in a columbarium (in Japanese Buddhism, a nokotsudo), which can be either attached to or a part of a Buddhist temple or cemetery. This practice allows for the family of the deceased to visit the temple for the conduct of traditional memorials and ancestor rites.