The castle in Krevo was constructied in far 1338, but also today its ruins sound a powerful chord of the period of blossoming of the Great Lithuanian Principality. The castle was included into "a stone belt" - defensive network with castles in Lida, Novogroudok, Krevo and other places constructed with the defense purpose from the Teutonic award of crusaders aggression. For time it was an unapproachable fortress: the big army could be covered in the courtyard, thickness of walls reached up to 2,5 m and height - 13 m.

But the castle is famous not only it: here at the end of summer, 1385 Union of Krevo between GLP and Rzeczpospolita has signed, which basic purpose was the union between states as a counterbalance the Teutonic award. The rests of the castle will also tell about bloody crackdown of prince Jagajlo, striving become autocratic over GLP, with the uncle, prince Kejstut, sharpened in these walls. His son Vitout, the future Grand prince, has run having changed clothes in a female dress.

The First World war transformed the Crevo castle into ruins: there a front line passed within three years of what reminds a bunker in one of towers today. The ancient castle has kept the perimeter, but from towers only some fragments have remained. From the top of the Jurova mountain - former pagan temple - the remarkable view on the castle is opened, and on the St. Alexander Nevsky orthodox church (1854) and the modern Catholic church on the place of the first church in Belarus, constructed in 1387 after signing Union of Krevo.

For a long time passed thereafter, but walls of the Crevo castle stand and fan travellers breath of gray-haired centuries.