15 000 Forint Hortobágy National Park

Hungary's Hortobágy — the largest continuous natural grassland in Europe — was designated a UNESCO World Heritage Site in 1999, the first Hungarian landscape to receive that recognition. The national park itself was established in 1972, making it Hungary's oldest. The silver bullion and commemorative programs tied to Hungary's protected natural areas have expanded considerably since the 2000s, with the Hortobágy appearing periodically across denominations as one of the most culturally weighted subjects in the series.