Located on Monte Figogna, at a height of 804 metres above sea-level, this is the favourite of all Genovese sanctuaries, a place of real devotion as well as of pilgrimage and countryside excursions. In 1490, after the apparition of the Virgin Mary to Benedetto Pareto, a humble farmer from a village in the valley, a chapel was built, demolishing an old watch tower from which the sanctuary takes its name. The current building, the result of a grand design willed by the Polcevera valley dwellers, was inaugurated in 1890, when the apparition was seen again. The most interesting part of the entire building is without doubt the gallery of the ex-votaries: they were devoutly faithful but simultaneously excluded form the daily life of the time. Near the sanctuary, which welcomes visitors, there are picnic facilities, several good restaurants where pilgrims can take some sustenance after the long climb, which can be undertaken on foot, by bicycle, or, for the lazier, by bus or car.