The Archaeological Museum, housed in Palazzo Anzani, in Via Donato Anzani (tel. 0825.824839), is open on weekdays (8-14) and is closed on Saturday and Sunday. There are archaeological finds found in the settlement on the hill of Starza, Samnite finds found in Casalbore, Roman and medieval finds from Aequum Tuticum, and other finds found in the territory of Ariano.

From the Neolithic village of La Starza in the territory of Ariano Irpino come the cups faired with convex bottom and loops tape, the deep plates with lip to brim and hourglass supports, in addition to the typical cups with loop to soprelevazione first pinnata and then to axe. Later are the characteristic ovens for the processing of bronze.  Also on display are ceramics related to the sub-Apennine facies and Proto-Villanovan, which then document the final Bronze Age (XIII-X century BC). Peculiar of this late phase are also the cups with bilateral head elevation or with zoomorphic characters of paparella or snail horns. 

Inside the museum you can also admire pre-Roman finds from other municipalities of the area. Remarkable are above all the finds of an Italic temple of the third century. a.c. and the funerary equipment of a Samnite necropolis, both coming from the municipal territory of Casalbore, as well as the findings of a Samnite sanctuary found in the territory of Greeks.  Among the various materials on display dating back to the time of the Samnites - Irpini are ceramics, bronzes, silver fibulas and bucchero pottery.

Of Roman times are the conspicuous finds found in the vicus of Aequum Tuticum, cardo viarum at the intersection of the streets Aemilia, Minuncia, Traiana and Herculia on the plateau of Sant'Eleuterio in the countryside of Ariano Irpino. In particular, the museum exhibits coins, bronze utensils, glass and pottery, as well as one of which bears the name of the consul Marcus Aemilius Lepidus while the other is related to the Via Herculia with the indication in Roman miles of the distances between Aufidena and Aequum Tuticum.