This enormous corm tree is the remnant of ancient plantations. Its fruit was distilled and used to make schnaps. We are at the foot of the Vosges mountains, in Marmoutier.
https://www.futura-sciences.com/planete/photos/botanique-15-arbres-remarquables-proteger-1836/arbre-cormiers-bas-rhin-13288/

Difficulty ****