Ópusztaszer is a village in Csongrád county, in the Southern Great Plain region of southern Hungary. It is most known as the location of the Ópusztaszer National Heritage Park.
Wikipedia https://en.wikipedia.org/wiki/Ópusztaszer
Official Website http://www.lococlub.hu/Adatok.php?kod=1490058&mr=G
Address 6767, Hungary
Coordinates 46°29'6.884" N 20°5'48.421" E