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Unknown Era · Temple41.9037°N, 12.4913°E

Palazzo Barberini Mithraeum

In Rome’s via delle Quattro Fontane, beneath the grandeur of Palazzo Barberini, lies one of the best-preserved mithraic shrines in the city. Discovered by accident during construction work in 1936, it was not built from scratch but adapted from earlier second-century CE structures, converted to its cult purpose in the third century. Mithraea were typically subterranean, oblong chambers, evoking the cave where Mithras was said to have slain the bull; initiates gathered here for rituals in lamplight, surrounded by frescoes and carved altars. This particular example retains much of its original layout and decoration, offering a rare, atmospheric glimpse into the secretive world of a Roman mystery cult. The space is compact, the silence heavy with history, a quiet, layered survival beneath the city’s later splendour.

Description via source. Coordinates and heritage data from the Atika atlas.

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