It's a vacation paradise and destination for millions of people - and one of the world's most diverse and amazing habitats: The Mediterranean. We think we know all about it, but where it came from, who inhabits it and what traces man left over millennia are still a riddle.Two teams of explorers - one on land and one at sea - set out to solve the mysteries of the Mediterranean above and below water..

It's a vacation paradise and destination for millions of people - and one of the world's most diverse and amazing habitats: The Mediterranean. We think we know all about it, but where it came from, who inhabits it and what traces man left over millennia are still a riddle.Two teams of explorers - one on land and one at sea - set out to solve the mysteries of the Mediterranean above and below water..