Excavation of a wine cellar in central Italy is revealing Pyrimads unlike any other that seem to have been constructed by a pre-Roman Italian people called the Etruscans. Per the article:
The first ever Etruscan pyramids have been located underneath a wine cellar in the city of Orvieto in central Italy, according to a team of U.S. and Italian archaeologists.... The subterranean pyramids in Orvieto could offer a unique insight into this civilization as the structures appear to be unique....According to Bizzarri, there are at least five Etruscan pyramids under the city. Three of these structures have yet to be excavated.
Also per the article the Etruscans were:
A fun-loving and eclectic people who among other things taught the French how to make wine, the Romans how to build roads, and introduced the art of writing to Europe, the Etruscans began to flourish in Etruria (an area in central Italy that covered Tuscany, Latium, Emilia-Romagna and Umbria) around 900 B.C., and then dominated much of the country for five centuries. Known for their art, agriculture, fine metalworking and commerce, they started to decline during the fifth century B.C., as the Romans grew in power. By 300-100 B.C., they eventually became absorbed into the Roman empire. Their puzzling, non-Indo-European language was virtually extinguished and they left no literature to document their society. Indeed, much of what we know about them comes from their cemeteries: only the richly decorated tombs they left behind have provided clues to fully reconstruct their history.