Construction workers found this ritual landscape six meters below street level in 1969, and archaeologists have since traced continuous use from the fifth millennium BC through the medieval period, one of the longest sequences of sacred use anywhere in the Alps.
Carved anthropomorphic stelae, plowing furrows left by Neolithic rituals, dolmenic and cist burials, and rows of wooden ceremonial posts document six thousand years of changing beliefs on the same ten-thousand-square-meter plot. A museum designed by architect Vittorio Valletti, with a 46.5-meter central nave requiring no interior columns, opened over the site in 2016 and is now called the MegaMuseo. The building lets visitors walk directly above the excavation, looking down through glass floors at stelae still standing where they were planted.
