Pyramidal Etruscan Tombs

Archaeologists working near Orvieto, Italy, have discovered a complex of pyramidal, rock-cut Etruscan tombs. The best thing about this discovery, to me, is the way it was made. The investigators were poking around a modern wine cellar, cut into the soft, volcanic rock of a hill, when they noticed stairs leading down that appeared to be Etruscan:

As they started digging, [the archaeologists] noted that the cave's walls were tapered up in a pyramidal fashion. Intriguingly, a series of tunnels, again of Etruscan construction, ran underneath the wine cellar hinting to the possibility of deeper undiscovered structures below.

After going through a mid-20th century floor, George and Bizzarri reached a medieval floor. Immediately beneath this floor, they found a layer of fill that contained various artifacts such as Attic red figure pottery from the middle of the 5th Century B.C., 6th and 5th century B.C. Etruscan pottery with inscriptions as well as various objects that dated to before 1000 B.C.

Digging through this layer, the archaeologists found 5 feet of gray sterile fill, which was intentionally deposited from a hole in the top of the structure.

"Below that material there was a brown layer that we are currently excavating. Intriguingly, the stone carved stairs run down the wall as we continue digging. We still don't know where they are going to take us," Bizzarri told Discovery News.

The material from the deepest level reached so far (the archaeologists have pushed down about 10 feet) dates to around the middle of the fifth century B.C. "At this level we found a tunnel running to another pyramidal structure and dating from before the 5th century B.C. which adds to the mystery," George said.

Archaeology doesn't get much cooler than that.