The chateau at the hill-top of the same name above the town Nepomuk has become renowned also as the place of origin of the Zelenohorská Unity (1465), by the finding of the Zelenohorský Manuscript (1817) and, especially, as the seat of the Black Barons. At present, the object is being repaired, apart from the observation fourth floor the visitors may see the exhibition devoted to the history of Zelená Hora.