There are many art galleries, museums and world-class works of art to visit, both in Budapest and all over the country. The National Gallery, for example, is home to the largest public collection of fine arts in Hungary. Helikon Castle Museum, the museum of Festetics Palace in Keszthely, has a carriage exhibition where you can see contemporary coaches and sleighs, while the hunting exhibition displays trophies of wild animals collected from five continents. Victor Vasarely was a key figure in op art, kinetic and international geometric abstract art, whose works are displayed in the inspiring exhibition of 20th century artists in the Vasarely Museum. There is also a world-class art centre in historical central Debrecen: the MODEM Modern and Contemporary Arts Centre. The Ludwig Museum, located within the walls of MüPa, is the only contemporary art museum in the country that exhibits international works as well.