The urban layout of the city, dating back to the founding of the third century BC is of oblong shape in dependence on orographic conditions of the hill, and is divided into three main parallel streets, intersected at right angles by streets. The city was surrounded by walls with six gates, on a perimeter of about 3 km and occupied an area of about 25 hectares, of which only one-tenth has been brought to light.
The most important remains are currently divided into three monumental areas:
1. theater of the Augustan age, near which are the remains of two small temples of the imperial era and those of a rich domus, called "House of Mosaics" for the presence of mosaic floors of the fourth century in some circles;
2. closed hole with porticoes and remains of two temples on the north and south sides, tentatively identified with the capitol (the main temple) and a Cesareum (a temple dedicated to the imperial cult). On the west side are the remains of a basilica and perhaps a curia (place of meeting of the city council). Near the hole are also the remains of a thermal bath.
3. remains of the amphitheater built on the slopes of the hill in the first century BC and modified in the imperial era.
Outside the walls are also found monumental tombs, an early Christian basilica and an aqueduct.
Many of the findings and the evidence found here are kept in the National Museum of the Val d’Agri (born in the territory of Grumento Nova near the archaeological ruins), as well as numerous finds in the surrounding areas and the surrounding towns such as the famous ritovamento the Sarcophagus of S.Laverio Martyr, now housed in the archaeological museum in the country.