Almost a kilometre of mutually perpendicular passages cut in the rock below Petrov. The system of vaulted passages, located in a rectangular area approximately 85 x 60 metres, provided shelter for up to three thousand people for four days in the event of an atomic explosion.

We operate an archive of books, correspondence and manuscripts of writers and otherwise culturally active figures whose work was mostly produced in opposition to the former communist regime. You will find here the archives of Pavel Kohout, Jiří Gruša, Ota Filip, Lumír KUchař and Jan Trefulka.

We offer tours of the museum, permanent exhibitions and displays.

In the remains of the metallurgical complex there is an exposition of the iron industry of the central part of the Moravian Karst. The ground floor of the building is devoted to the beginnings of iron metallurgy, while the first floor focuses on the blast furnaces and especially the actual building and operation of the smelter. There are also moving models installed here.