The Sesi are a group of Bronze Age corbelled stone tombs scattered across a windswept terrace above the sea at Mursia, on the south-west coast. Built between roughly 1800 and 1600 BC by an unknown people, they resemble Sardinian nuraghi in technique but not in form — round mounds of evenly-cut lava blocks, each containing one or several burial chambers reached through narrow passages.
The largest, the Sese Grande, is twenty metres across and once stood as high as eight metres. A 9th-century earthquake and millennia of stone-robbing have reduced the others to ruins, but you can still make out the round bases of more than fifty tombs scattered across the headland. The setting — bare ground, capers, the open sea — is unforgettable. The site is free to visit, signed off the perimeter road just south of the airport.