Aggtelek National Park is a national park in Northern Hungary, in the Aggtelek Karst region. The most significant values of the national park are the special surface formations and caves in this limestone landscape.
Wikipedia https://en.wikipedia.org/wiki/Aggtelek_National_Park
Official Website http://www.anp.hu/
Coordinates 48°29'48.047" N 20°37'4.516" E