Archaeologists identify a series of unknown structures in Guatemala.
Experts investigate a structure built above the rain forests of Sri Lanka.
Scientists discover a fossil unlike any known animal, living or extinct.
In Colombia, a team of scientists discover an unidentified animal vertebra.
In the Philippines, archaeologists discover ancient rhinoceros remains.
Explorers discover ancient structures hidden on the island of Pohnpei.
A mysterious creature that glows in the dark is discovered at Lake Eacham.
A puzzling site containing large stone blocks is revealed on Kilwa Island.
On the island of Kolombagara, explorers uncover a mysterious man-made cave.
In Mexico, a rancher discovers dozens of skulls and bones on a cave floor.
