Cividade Hill's most notable feature is Cividade de Terroso in the hilltop. It is an ancient Castro culture town, hence the name of the hill that derives from Latin "civitas" (city). The walled city thrived since 900 or 800 BC, before being conquered and destroyed by the Roman Republic around 138 BC. Due to its urban protohistoric characteristics, the hilltop is considered to be an acropolis by archaeologists. The acropolis is, currently, owned by Póvoa de Varzim City Hall. In the slope there are villages and walled labyrinth-like farm-fields.