Very impressive beech trees, which are several hundred years old. They are the remains of an old "Hutewald" - an agroforestry system fostering widely spaced oak and beech trees to produce acorns and beechnuts, which in turn fatten wild boar in autumn.
Some of them seemed to grow like Ficus bengalensis: branches bending down to the ground, re-rooting, and from there growing into another beech tree.