Tomb of Lars Porsena
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The tomb of the Etruscan king Lars Porsena, built around 500 BCE at Clusium (modern Chiusi), Italy, was described as follows by the Roman writer Marcus Varro (116 BCE-27 BCE):
Porsena was buried below the city of Clusium in the place where he had built a square monument of dressed stones. Each side was three hundred feet in length and fifty in height, and beneath the base there was an inextricable labyrinth, into which, if any-body entered without a clue of thread, he could never discover his way out. Above this square building there stand five pyramids, one at each corner and one in the centre, seventy-five feet broad at the base and one hundred and fifty feet high. These pyramids so taper in shape that upon the top of all of them together there is supported a brazen globe, and upon that again a petasus from which bells are suspended by chains. These make a tinkling sound when blown about by the wind, as was done in bygone times at Dodona. Upon this globe there are four more pyramids, each a hundred feet in height, and above them is a platform on which are five more pyramids.
This extraordinary structure, standing some 750 feet high, was supposedly destroyed along with Clusium itself in 89 BCE by the Roman general Cornelius Sulla. No trace of it has ever been found, and historians have generally regarded Varro’s account as a gross exaggeration at best, and downright fabrication at worst. However, it now appears that archaeologists have been looking in the wrong place, and ancient Clusium may well have been closer to Florence than modern Chiusi.
In the 18th Century Father Angelo Cortenovis (1727-1801) proposed that the tomb of Lars Porsena was a huge electrical generator, and this idea was taken up by Robert Scrutton in his 1978 book Secrets of Lost Atland.
