The altar has no altarpiece or canopy, but instead sports a large tabernacle in the style of a circular temple with six columns and a cupola standing on a circular base. On this basement stand six exquisite little Corinthian columns of oriental alabaster with bases and capitals of gilt bronze, supporting a cupola. The tabernacle and the accompanying six candlesticks were made by Francesco Belli, a famous silversmith of Rome in the 18th century.