On the territory of the municipality of Roccavione there are now fourteen Villas built in the Art Nuoveau or Eclectic style between the late nineteenth and early twentieth century, when several wealthy families from Turin, Nice and Liguria, chose Roccavione and the area of lower Valle Vermenagna as a summer residence due to the climate, the natural landscape and the railway connection inaugurated in those years.
The Villas are concentrated in the area of the town centre that goes up the Vermenagna valley and which at the time was outside the town but close to the Railway Station. The Villas feature architecture characterized by belvedere towers, large windows, wrought iron elements and floral decorations in line with the taste that was spreading in the large urban centres in the decades between the nineteenth and twentieth centuries.
Among the various structures, Villa Erina is one of the best examples of eclecticism in Piedmont; the complex of the so-called Castello Basso and the above Villa Rosalia which during the Second World War was a point of support for the Italian, Nazi and Republican armies and, finally, for the partisan front. Worth noting are the monumental sequoias that are found in the park of the villa, later destroyed, which belonged to Count Salazar. The two sequoias are splendid both in shape and size: the largest reaches in fact 45 m in height and 10.30 m in circumference, while the smallest is slightly smaller, always measuring approximately 45 m in height and 7 m in circumference.