Italy
Pompeii

Pompeii was an ancient Roman city near modern Naples that was buried by the great eruption of Mount Vesuvius in 79 AD. The ashes preserved the buildings, the frescoes and the mosaics for 19 centuries. The waters of the Sarno river, the most polluted river in Europe, returned clear during the lockdown. Exactly as happened to the waters of the canals of Venice or to those of the ports of large industrial cities, Sarno also seems to have gone back in time, at least 60 years ago. A few hours after the end of the lockdown were enough to bring the pollution back to the Sarno river.