The site was first recognised in the 1860s, when peat-cutters in the Fiave-Carera basin pulled up wooden posts that did not match anything they knew. Systematic excavation began only a century later. Between 1969 and 1976 Renato Perini directed the campaigns that defined what archaeologists now call the seven phases of Fiave, from the Late Neolithic encampments through the dense Middle Bronze Age village of pile-mounted wooden houses arranged in regular rows over the lake.

The waterlogged peat preserved what dry soil destroys. Visitors looking into the display cases see oak posts still sharp at the tip, a fragment of a wooden wheel, charred seeds of emmer wheat and lentil, antler harpoons, and clay loom-weights still grouped as they were left. The reconstruction at the entrance gives the scale: small huts, raised perhaps a metre above the marshy ground, walls of wattle and daub, roofs of thatched reed.

“The pile-dwelling sites of the Alps offer an exceptional record of the way of life of early agrarian societies in this region between 5000 and 500 BC.”

UNESCO World Heritage Committee — Inscription decision, 36th session, 2011

Fiave is one of 111 sites across six countries grouped under the 2011 UNESCO serial inscription Prehistoric Pile Dwellings around the Alps. Italy contributes 19 of those sites, the largest national share. The Trentino subset — Fiave together with the nearby Lake Ledro and Lake Garda settlements — documents a continuous human presence in the alpine valleys from the Neolithic into the late Bronze Age. Why the village was abandoned around 2200 BC is debated: climatic cooling, lake level rise, or a slow migration to the higher meadows are the leading hypotheses, none of them yet decided.