basalt rock called panska skala or varhany located in kamenicky senov,czech republic.protected site,national natural monument.five

archeology attraction basalt rock bohemia bohemian switzerland ceske svycarsko column czech republic europe formation geological geology hexagonal kamenicky senov landscape material monument natural organ pipes outdoor panska skala polygonal stone tourist travel varhany volcanic called located republic protected site national monument five six-sided columns arranged vertically rocks look like