Titelberg

Titelberg (Luxembourgish: Tëtelbierg) is the site of a large Celtic or Germanic settlement or oppidum in the extreme south west of Luxembourg. In the 1st century BCE, this thriving community was probably the capital of the Treveri people. The site thus provides telling evidence of urban civilization in the century before the Roman conquest.

Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).