Laiuse castle, or the castle of lais. Schloss Lais), was founded by the Livonian order in the 14th century. Construction continued until the mid-15th century. This castle was built as a subsidiary and has been adapted for use in firearms.

First built the Central part, the size h, 6 m, and a circumferential wall in the form of a trapezoid. Initially, the height of the walls was 9 meters, and the thickness is just over 1 meter. Later, in the 15th century. The height and the thickness of the walls of the castle were enlarged. The maximum preserved height of the wall is 13, 8 m, and the height of the partially ruined tower is 22 meters. The diameter of the baths at the base reaches 14 meters thick walls, 4 m.

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