What if we told you there was a place dotted with caves, sinkholes, springs and valleys? We’re serious! It’s not the set of a new Italian Gothic film, it’s Tuscany’s unusual landscape that’s waiting to be discovered underground. Sure, the above-ground wonders on offer in this region are certainly not to be missed, but they often distract visitors from equally exciting sites below our feet. Visitors can explore 270 kilometres of underground tunnels, with no less than 1,597 natural grottos and stunning karstic landscape.