Čachtice is a village in Nové Mesto nad Váhom District in western Slovakia with a population of 4,010. The village is situated between the Danub…Čachtice is a village in Nové Mesto nad Váhom District in western Slovakia with a population of 4,010. The village is situated between the Danubian Lowland and the Little Carpathians. It is best known for the ruins of the nearby Čachtice Castle, home of Erzsébet Báthory. The castle stands on a hill featuring rare plants, and the area was declared a national nature reserve for this reason.