The open-air museum “Lost heritage” is represented by models of nine architectural monuments, which used to exist in Novogrudok region but have not survived till present days.
Among the exhibits of the museum is a model of the church that once stood on the Castle Hill, Novogrudok Town Hall, the Jesuit College, a windmill. There are also models of the palace of the Radzivils, the estates of Brakhotskikh, O’Rourke and Chembrovo, as well as the synagogue twhich was destroyed in the middle of the XX century.