Hortobágy is an 800 km2 national park in eastern Hungary, rich with folklore and cultural history. The park, a part of the Alföld, was designated as a national park in 1973, and elected among the World Heritage Sites in 1999. The Hortobágy is Hungary's largest protected area, and the largest semi-natural grassland in Europe.

The Great Hungarian Plain is a plain occupying the majority of the modern territory of Hungary. It is the largest part of the wider Pannonian Plain. Its territory significantly shrank due to its eastern and southern boundaries being adjusted by the new political borders created after World War I when the Treaty of Trianon was signed in 1920.