Beautiful European city collapsing in on itself as sinkholes keep opening up express.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from express.co.uk Daily Mail and Mail on Sunday newspapers.
What secrets lie below? From Istanbul's Basilica Cistern to Chavín de Huántar's chambers, a tapestry of ancient mysteries in subterranean structures are yet to be revealed.
The forgotten catacombs, cisterns, sewers and quarries beneath Rome are causing sinkholes as traffic on the roads above gets increasingly heavier. | ITV National News