Like most Old Ruthenian fortresses, high castle consisted of very detyntsya, hail and predhraddya bypass. The fortress, originally had wooden and earthen fortifications occupied the top of Castle Hill. Maybe at the end of XIII - XIV century beginning. it was rebuilt in stone. The construction of the stone castle in 1362 is attributed to the Polish king Casimir, who conquered Galicia. Castle, who repeated the contours of the mountain top, in terms of acquired stretched rectangle shape with four towers at the corners of which are the highest in the west, was a patrol. Inside the castle rozdilyavsya two yards of the building princely palace. Inside the walls were barracks, ammunition depots, the rock was carved deep well. For the first time the High Castle was taken by storm in 1648 by Cossacks led by Maxim Kryvonis. After 1648 brought with him the garrison, and in 1672 the Turks occupied it without a fight. At the beginning of XVIII century the High Castle captured and destroyed much Swedish troops under the command of Charles XII. After this lost stronghold of strategic importance. Since the second half of XVIII century. towers and walls stripped to gradually building material. Castle almost did not survive.