Beneath our feet lie forgotten cities, ancient structures, and puzzling monuments that challenge everything we know about ...

The Tiwanaku civilization was one of the first and most powerful in the Andes region, but by 1000 A.D., it had collapsed.

In a world where innovation was sweeping across Europe, the British Isles chose a path of solitude, crafting a unique legacy ...

Researchers say they’ve tracked down the origins of Stonehenge’s so-called “Altar Stone,” the monolith at the center of one of the world’s most mysterious monuments.

Researchers say they’ve tracked down the origins of Stonehenge’s so-called “Altar Stone,” the monolith at the center of one of the world’s most mysterious monuments.

Archaeologists unearthed Los Abuelos, aka "The Grandparents," a nearly 3,000-year-old Mayan city in Guatemala, complete with pyramids and mysterious monuments that reveal new traces of the ancient ...

Researchers say they’ve tracked down the origins of Stonehenge’s so-called “Altar Stone,” the monolith at the center of one of the world’s most mysterious monuments.

Researchers say they’ve tracked down the origins of Stonehenge’s so-called “Altar Stone,” the monolith at the center of one of the world’s most mysterious monuments.

Researchers say they’ve tracked down the origins of Stonehenge’s so-called “Altar Stone,” the monolith at the center of one of the world’s most mysterious monuments. The purpose of the prehistoric ...

Researchers say they’ve tracked down the origins of Stonehenge’s so-called “Altar Stone,” the monolith at the center of one of the world’s most mysterious monuments. The purpose of the ...

Researchers may have solved a Stonehenge mystery — and raised another. They say its central Altar Stone somehow got to England from Scotland, hundreds of miles farther away than originally thought.