The geology department in the castle's vaults offers a tour through the history of the earth.

The ichthyosaur from Salzgitter was found in 1940 about 100 meters underground in the Georg mine near Salzgitter-Gitter.

The prehistory and early history of the Salzgitter region is presented in detail in an exhibition with numerous original finds.

In 1952, the open-air station at Krähenriede was discovered during construction work in the north of Salzgitter-Lebenstedt. Many finds proved that a Neanderthal hunting station was located here 50,000 years ago.

Outside, the Eiszeitgarten illustrates the importance of nature and climate for the development of humans in the Ice Age.

Castles and knights, farmers, craftsmen and salt workers.

The history of the Salzgitter region in modern times from 1700 to 1933 is presented on the second floor of the Salder Castle Municipal Museum.

The city of Salzgitter was founded on April 1, 1942. Together with Wolfsburg, it is the only successful large city founded in Germany in the 20th century.

In this section, visitors can reminisce about their own childhood and learn interesting facts about the history of childhood in the 19th and 20th centuries.

Two windmills were mentioned in the Burgdorf area more than 440 years ago, which were leased by the "Fürstliche Cammer" according to a document from 1566.

On 550 square metres, the permanent exhibition documents the economic development of the city of Salzgitter since the beginning of industrialization.

Without the large iron ore deposits, the ironworks would certainly not have been built and the town would not have been founded in 1942.