A piece of pottery dating to the late 6th century B.C.
A piece of pottery dating to the late 6th century B.C. SIA/EFAK/YPPOA

You would think that every single bit of archaeological evidence for ancient life in Greece would have been uncovered by now. But there are still discoveries to be made. A team of archaeologists from the University of Gothenburg in Sweden and the University of Bournemouth in England took a deeper look at a site that had been dismissed as unimportant and found the ruins of an ancient city dating back 2,500 years, reports the Local.

The city was located on a hillside near Vlochós, five hours north of Athens. Part of the ruins there had been previously known, but since this area of Greece was thought to be a backwater in ancient times, this place was thought to be a small settlement of little interest.

To this team, though, “the fact that nobody has ever explored the hill before is a mystery,” said Robin Rönnlund, the Ph.D student who led the fieldwork.

From the air, the walls are visible.
From the air, the walls are visible. SIA/EFAK/YPPOA

Since they started exploring the city, the archaeologists have found the city’s walls, gates, and towers, along with pottery and coins, dating as far back as 500 B.C. The team is using ground-penetrating radar to map the city and avoid disturbing the site through excavation. It’s “quite a large city,” says Rönnlund, and could reveal more about ancient life in this overlooked part of Greece—at least about life up until about 300 B.C., when the city looks to have been abandoned.