in literature, music, dance and architecture. The prime example is the Slovak national anthem, "Nad Tatrou sa blýska", which is based on a melody from the "Kopala studienku" folk song. The manifestation of Slovak folklore culture is the "Východná" Folklore Festival. It is the oldest and largest nationwide festival with international participation, which takes place in Východná annually. Slovakia is usually represented by many groups but mainly by SĽUK (Slovenský ľudový umelecký kolektív—Slovak folk art collective). SĽUK is the largest Slovak folk art group, trying to preserve the folklore tradition. An example of wooden folk architecture in Slovakia can be seen in the well-preserved village of Vlkolínec which has been the UNESCO World Heritage Site since 1993. The Prešov Region preserves the world's most remarkable folk wooden churches. Most of them are protected by Slovak law as cultural heritage, but some of them are on the UNESCO list too, in Bodružal, Hervartov, Ladomirová and Ruská Bystrá. The best known Slovak hero, found in many folk mythologies, is Juraj Jánošík (1688–1713) (the Slovak equivalent of Robin Hood). The legend says he was taking from the rich and giving to the poor. Jánošík's life was depicted in a list of literary works and many movies throughout the 20th century. One of the most popular is a film Jánošík directed by Martin Frič in 1935. Art Visual art in Slovakia is represented through painting, drawing, printmaking, illustration, arts and crafts, sculpture, photography or conceptual art. The Slovak National Gallery founded in 1948, is the biggest network of galleries in Slovakia. Two displays in Bratislava are situated in Esterházy Palace (Esterházyho palác) and the Water Barracks (Vodné kasárne), adjacent one to another. They are located on the Danube riverfront in the Old Town. The Bratislava City Gallery, founded in 1961 is the second biggest Slovak gallery of its kind. It stores about 35,000 pieces of Slovak international art and offers permanent displays in Pálffy Palace and Mirbach Palace, located in the Old Town. Danubiana Art Museum, one of the youngest art museums in Europe, is situated near Čunovo waterworks (part of Gabčíkovo Waterworks). Other major galleries include: Andy Warhol Museum of Modern Art (Warhol's parents were from Miková), East Slovak Gallery, Ernest Zmeták Art Gallery, Zvolen Castle. Literature Christian topics include poem Proglas as a foreword to the four Gospels, partial translations of the Bible into Old Church Slavonic, Zakon sudnyj ljudem. Medieval literature,