Prehistoric find located beneath the waves

Archaeologists have discovered traces of Switzerland’s oldest known building, but it will never draw tourists: it lies underwater in the middle of a lake.

Since it was made of wood scientists used dendrochronology – the technique of dating by tree rings – to give a precise figure of 3863 BC.

The find in Lake Biel, northwest of the Swiss capital, Bern, was described as “sensational” by Albert Hafner, who is in charge of underwater archaeology in the region.