Fortress Byalata Stena
The ruins of fortress "Byalata stena" ("The White Wall" - aka "Kaleto") are located 4 kilometers north-west of village of Svalenik (Ruse region). It was a little late-Roman fortress, part of the defense system of the Romans in nowadays Northern Bulgaria.
The citadel was built in IV Century as a watch fortification in order to control the road in the valley of Malki Lom River, at altitude of 163 meters. Currently only south wall and two inner rooms of the fortress are revealed. The castle has an irregular shape conformed to the configuration of the terrain. It was made of hewn stone, cemented with mortar there were two gates (east and west). The thickness of the wall was varied from 1.9 to 3.6 meters.
Total area of the fortress was about 5000-6000 square meters.
There were found different objects, bronze tools, head of spears, coins (of Constantine I, Roman emperor) and ceramic pottery. The finds give a reason to claim the fortress had survived after the big Huns and Goths invasions in the V century, but as an already fortified settlement of agriculture population.
The found artifacts can be seen in Ruse historical museum.