In its tenth episode, the Medienzentrum is on the road in Salzgitter-Salder.

Most people know Salder Castle as a cultural, educational and event venue. But the castle also hides secrets that can easily be overlooked - in its walls.

Renate Vanis, Salder's local historian, tells us about the small fossils that can be found in the wall around the castle. The fossilized stalk limbs of the so-called sea lilies are also known as trochites. Incidentally, crinoids are not plants, but echinoderms and are related to sea urchins and starfish.

When the crinoids died off during the Upper Muschelkalk period around 230 million years ago, they sank to the seabed and formed a layer of rock known as trochitic limestone.

This trochitic limestone was later mined and quarried in the ducal quarries in the Salzgitter mountain range. Some buildings, such as Salder Castle, were constructed using this building material.

Incidentally, there are two circular hiking trails on this topic in the Salzgitter mountain range, which lead through the beech forests of the landscape conservation area. These Geopfads take you through a time span of more than 150 million years, from the limestones of the Muschelkalk to the deposits of the Cretaceous period. There you can not only enjoy nature and discover fossils, but also learn a lot about Salzgitter.

If you would like to visit the mysterious places in Salzgitter yourself, you can access an online map where all the secrets can be found. The previously published films can also be accessed there.