Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

    JUST WATCHED

    Aliens or Atlantis? Who made Costa Rica's stone spheres?

MUST WATCH

Aliens or Atlantis? Who made Costa Rica's stone spheres?

The stone spheres of Costa Rica are one of the strangest mysteries in archaeology. CNN's Jonathan Mann reports.

Aliens or Atlantis? Who made Costa Rica's stone spheres?

The stone spheres of Costa Rica are one of the strangest mysteries in archaeology. CNN's Jonathan Mann reports.