Avaricum

Avaricum - Credit: Wikimedia Commons

Avaricum was an oppidum in ancient Gaul, near what is now the city of Bourges. Avaricum, situated in the lands of the Bituriges Cubi, was the largest and best-fortified town within their territory, situated on very fertile lands. The terrain favored the oppidum, as it was flanked by a river and marshland, with only a single narrow entrance. Read more on Wikipedia

type: ancient site
date from: None

Source: en.wikipedia.org