Bennigser Burg, Medieval hillfort in Springe, Germany.

Bennigser Burg is a medieval fortification near Springe located on a hillside. The site shows earthen walls and ditches surrounding the terrain that mark an ancient defensive structure.

The site was built in the 10th century as a defensive structure and was confirmed through archaeological finds from the 1930s. Ceramic remains show how the place was used and valued during that time.

The fortification shows how people in the early Middle Ages protected and organized their settlements. The site reflects the building methods and defensive thinking of that era, which you can still see in the landscape today.

The site lies 2 km southwest of Bennigsen and about 300 m east of the B 217, on the southeast end of the Deister ridge. The earthen walls stand 3 to 5 m high on uneven ground, so sturdy footwear is needed; there are no developed paths and the site is not wheelchair-accessible. The forest on the grounds was cleared and replanted in 2023.

The 1937 excavation left the gateway between the main and outer baileys partly reconstructed, so visitors can still make out the former entrance: a 3 m wide, 15 m long passage of limestone slabs bound with clay and loam, with traces of wooden posts suggesting a timber gate tower.