Limes Porolissensis

Located on Roman province of Dacia, present day Romania, Limes Porolissensis was a defensive line organized on 2nd century AD after the Conquest of Dacia, having observations towers, short cut-off walls fortifications, integrating the following castra:
 * Castra of Negreni
 * Castra of Buciumi
 * Castra of Largiana
 * Castra of Certinae
 * Porolissum
 * Castra of Jac
 * Castra of Tihău
 * Castra of Samum
 * Castra of Arcobara
 * Castra of Livezile
 * Castra of Orheiu Bistriței
 * Castra of Brâncovenești