Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe is a transnational serial nature UNESCO World Heritage Site, encompassing 93 component parts (forests of European beech, Fagus sylvatica) in 18 European countries. Together, the sites protect the largest and least disturbed forests dominated by the beech tree. In many of these stands, especially those in the Carpathians, beech forests have persisted without interruption or interference since the last ice age. These sites document the undisturbed postglacial repopulation of the species.