Its past strategic importance is attested by the impressive ruins of the powerful castello Lantieri, located on a hill top and commanding a view all over the surrounding landscape.

It rises on a solitary place, ideal to control the outlet of the Oglio river from Lake Iseo, and to survey the roads leading to the plain and to Bergamo.

The Lantieri family, in the 15th century, had already spread into several branches; they sided with the Ghibellines, and owned many properties, both in Paratico and Torbiato, including some stone quarries.

Some interesting works are preserved in its interior, such as the polychrome inlaid high altar and the splendid Rosary kaltar, with marble marquetry.

Fusia's water mill and irrigation ditch represent a complex medieval achievement of hydraulic engineering; they favoured the development of commercial and market activities in Paratico.