A vast fortress overlooking the village of Helfta on top of a hill in Germany was discovered to be over a thousand years old. This "enormous ring-shaped" fortress is called Helpideburg and was established around the late 8th century. Felix Biermann, an archaeologist from the Monument Preservation Office, said that this structure was constructed in the 13th century and became a "center of royal and imperial residence, military and governmental center, as well as a settlement and economic hub."