Autumn colors at Hainich National Park, an Ancient and Primeval Beech Forest, Thuringia, Germany, Europe

An adult European common frog (Rana temporaria) on the ground in Hainich National Park, Thuringia, Germany, Europe

Toddler, 3 years, walking over a secured rope above treetops, Hainich Tree Top Walk, Hainich National Park, Thuringia, Germany, Europe

Solitary linden tree (Tilia) on green meadow, dandelion in bloom, blue sky with clouds, Hainich National Park, Thuringia, Germany, Europe

Tree tower at the Tree Top Walk, Nationalpark Hainich national park, Thuringia, Germany, Europe

Hiking trail winding through natural beech forest, UNESCO World Natural Heritage, National Park Hainich, Thuringia, Germany, Europe

Tree tower with tree house on the Baumkronenpfad tree top walk in the Hainich National Park, Thuringia, Germany, Europe

Weberstedter Kreuz (Weberstedter Cross). The woodland Hainich in Thuringia, National Park and part of the UNESCO world heritage - Primeval Beech Forests of the Carpathians and the Ancient Beech Forests of Germany. Europe, Central Europe, Germany, Thuringia

Old Signpost Eiserne Hand (iron hand). The woodland Hainich in Thuringia, National Park and part of the UNESCO world heritage - Primeval Beech Forests of the Carpathians and the Ancient Beech Forests of Germany. Europe, Central Europe, Germany, Thuringia

The treetop walkway in the Hainich National Park, Thuringia, Germany

The treetop walkway in the Hainich National Park through the beech tree in Thuringia, Germany