secret

Eighth wonder of the world? The stunning temples secretly carved out below ground by 'paranormal' eccentric

Nestling in the foothills of the Alps in northern Italy, 30 miles from the ancient city of Turin, lies the valley of Valchiusella. Peppered with medieval villages, the hillside scenery is certainly picturesque.

But it is deep underground, buried into the ancient rock, that the region's greatest wonders are concealed.