Vallone dei Mulini, also known as Valley of the Mills is close enough to the city center to warrant a peak at it. On street level, visitors can look below into the valley and see abandoned flour mills. The stone mills date back to the 13th century and its primary use was to grind grain. Due to shifts in industry and reconstruction around the city, the mills were closed and abandoned in the 1940s as access to trade was blocked and the valley experienced great humidity.

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