Claustra Alpium Iuliarum was a defense system within the Roman Empire between Italia and Pannonia that protected Italy from possible invasions from the East. It secured the Postojna Gate, the land link between the eastern and western part of the empire, and thus the Claustra represented an inner border defense of the empire. Unlike a linear rampart, the Claustra consisted of a series of interconnected fortifications with its center at Castra ad Fluvium Frigidum ; other important fortresses were Ad Pirum on today's Hrušica Plateau and Tarsatica, now a part of the city of Rijeka. They had been governed from the town of Aquileia.
Arutela was an ancient Roman fort in the Roman province of Dacia on the Limes Alutanus, today near the town Călimănești. It lies on the left bank of the Olt River.
Castra Arcidava was a fort in the Roman province of Dacia in the area of the town of Arcidava in the 2nd and 3rd centuries AD.
Castra Centum Putei was a Roman fort in the Roman province of Dacia, translated as "a hundred wells/mines/pits".
Bacaucis was a fort in the Roman province of Dacia.
Caput Stenarum was a fort in the Roman province of Dacia in the 2nd century AD. It is located 700 m east of the village Boița in Romania.
The castra of Gilău was a fort in the Roman province of Dacia. Traces of the castra built in the 2nd century AD can be identified at the confluence of the rivers Someșul Mic and Căpuş in the Bánffy Castle's park at Gilău (Romania). The fort and its vicus were both abandoned in the 3rd century.
The castra of Hoghiz was a fort in the Roman province of Dacia. The fort was built in the 2nd century AD, on the left bank of the Olt River, at a place where a Dacian settlement existing already in the 2nd century BC was unearthed. The fort and the nearby village were abandoned in the 3rd century AD. The ruins of the castra are located in Hoghiz, Romania.
The castra of Olteni was a fort in the Roman province of Dacia. It was built in the 2nd century AD. The archaeological site yielded coins issued by the Roman emperors Titus Flavius Vespasianus, Domitian, Trajan, Antoninus Pius, Elagabal and Alexander Severus. The fort was abandoned in the 3rd century. It ruins are located in Olteni in commune Bodoc in Romania.
The castra of Bucium was a fort in the Roman province of Dacia in the 2nd and 3rd centuries AD. Its ruins are located in Bucium.
Castrum Caput Bubali was a fort in the Roman province of Dacia. It is located in Delinești.
The castra of Târsa was a temporary fort erected by the Romans during the Trajan's Dacian Wars.
The castra of Livezile was a castra in the Roman province of Dacia, located in the north side of the modern commune of Livezile in the historical region of Transylvania, Romania. The fort was erected and surrounded by a ditch in the 2nd century AD. The castra was abandoned in the 3rd century and its ruins are still visible.
The castra of Feldioara was a fort in the Roman province of Dacia.
It was a fort in the Roman province of Dacia.
Castra of Titești was a fort in the Roman province of Dacia.
It was a fort in the Roman province of Dacia.
The castra of Bumbești-Jiu now known as Gară was a fort in the Roman province of Dacia located in Bumbești-Jiu (Romania). It replaced the nearby earlier fort of [Castra of Bumbești-Jiu - Vârtop]] in the 2nd century AD. It defended and secured the entrance to the Jiului gorge and the Roman road from Bumbești through Porceni over the mountains, through the Vâlcan Pass to Sarmisegetuza.
The castra of Bumbești-Jiu now known as Vârtop was a fort in the Roman province of Dacia. It is located 35 m west of the Târgu Jiu - Petroșani road, in Bumbești-Jiu (Romania). It defended and secured the entrance to the Jiului gorge and the Roman road from Bumbești through Porceni over the mountains, through the Vâlcan Pass to Sarmisegetuza.
Feţele Albe was a fort in the Roman province of Dacia.
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