Benevento's Roman theatre was built under Hadrian in the 2nd century AD and could seat around 10,000 spectators. Unlike many Roman theatres that survive as scattered ruins, this one preserves substantial sections of its original seating tiers (cavea), carved into the hillside and still largely intact after two millennia. At the top of the cavea, modern walkways allow you to look down over the curved seating and out across the city toward the Apennines.
The theatre remained partially buried beneath medieval and later construction until excavations in the 20th century exposed most of what is visible today. It still hosts open-air performances in summer. The entrance is from Via Port'Arsa, and the site is open most of the week for a small admission fee.