Pompei is undoubtedly known above all for its archaeological area, the third most visited Italian state site. Together with those of Oplonti and Ercolano, the excavations of Pompeii are part of the UNESCO heritage. With its remains perfectly preserved until today, it is the strongest evidence of that tremendous calamity that was the eruption of Vesuvius in 79 AD. that destroyed the city. Until that tragic moment, Pompeii had an enormous importance in the fate of Roman life in Campania. Later, however, with the maneuvers of deviation of the river Sarno operated over time, the city experienced a strong phase of decadence. All this up to the Bourbon period Modern Pompeii was reborn in particular around 1891, with the construction of the Sanctuary of the Blessed Virgin of the Rosary, a pilgrimage destination for faithful from all over the world.