In 1972, a company responsible for sewerage work discovered a large fragment of a religious monument erected in honour of Jupiter. It is generally associated with a crowning figure of a rider killing a half-human, half-serpent monster. It is assumed to have an octagonal base dedicated to the gods of the week. This column is a reconstruction made from copies, installed in the early 1990s to evoke the Gallo-Roman past of the city. Discover it on Grand-Rue in Arlon.