Zemplín Stronghold (hu. Várhegy, sl. Hradisko) is a natural landmark of the village of Zemplín on the right bank of the Bodrog River. It is a characteristically well-preserved ring of an earthen rampart – a remnant of a timber-clay fortification. It was built during the 11th and 12th centuries, but the fortification was certainly there in prehistoric times as well. This rampart is preserved for a length of about 598 m if you walk along its back. The total outer circumference is about 723 m, making the site occupy an area of 3.6 ha. Inside there are two churches, a cemetery, two folk houses and the ruins of a school.