They can occur suddenly and catastrophically, they have swallowed cars, animals and people. They have destroyed homes and few an unlucky few have become graves. These are sinkholes, all across the globe enormous sinkholes have cracked the earths surface like an egg shell devouring every type of terrain with a destructive force that defies imagination. In Louisiana a 40 acer monster has been consuming the Bayou for two years. In Spain, sinkholes are tearing apart historic towns whilst leaving others in ruins and in Florida a sinkhole becomes a families worst nightmare. Why is the ground under our feet collapsing? What dangers lurk beneath the surface? Who’s home will be next?