Fortresses of Passau
Fortress of Passau stands for the following Roman military camps:
- Boiotro Castle , a late antique fortress
- Fort Boiodurum , a mid-imperial fort opposite the confluence of the Danube and Inn rivers
- Batavis , a Claudian / Neronian to late Flavian fort on the peninsula between the Danube and Inn
- Burgus Passau-Haibach , a late antique Burgus on the southern bank of the Danube near the district of Haibach