Archaeologists say the ruins were found near Jerusalem and are "the best example to date of the uncovered fortress city of King David."
The area is famous for possibly being the site of the biblical battle between David and Goliath.
The findings include two areas of specific interest.
One is a palace believed to have belonged to the king and the other is a storage room.
Researchers say that room was likely used to hold agricultural products and they call it “indisputable proof of the existence of a central authority in Judah during the time of King David."
Reports in the Jerusalem Post point to another important point. "This is the only site in which organic material was found, including olive seeds that can be carbon-14 dated."
The new site has two gates which matches up to what was referred to as Shaarayim in the Bible.
Archaeologists also believe the newfound city was situated exactly where a king would have wanted to be.
"From here one has an excellent vantage looking out into the distance, from as far as the Mediterranean Sea in the west to the Hebron Mountains and Jerusalem in the east," they noted.