Stonehenge: The most unsual theories about why the mysterious monument was built. Aliens, giants, or even team-building exercises are some of theories that attempt to explain Stonehenge's origins ...

Each of these colossal stones weighs around 20 tons and can reach up to 7 meters in height. ... With this revelation, the puzzle of Stonehenge's origin grows clearer, ...

Ranging in height from 3.6m to 4.2m, the tall sarsen stones offer a portal back in time. "I love Stonehenge, but it's always a bit of a conveyor belt ...

Stonehenge is largely comprised of two categories of stones: sarsen and bluestone. The large sarsen stones primarily came from an area about 16 miles north of the monument. The Altar Stone is ...

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.