Did aliens or Merlin build Stonehenge?

Stonehenge

This set of  100 stones laid out in concentric rings and horseshoe shapes on the Salisbury Plain in England, is 4,000 years old, possibly older.

It is one of the oldest, and certainly best preserved, megalithic (ancient stone) structures on Earth. 

Its larger 25-ton Sarsen (a hard type of sandstone) stones transported from a quarry 18 miles away. 

Some of these boulders also carry massive lintels connecting them. In ancient times, when all the stones were standing, there was a ring of rock in the sky as well as on the ground.

There is a giant dug out circle around Stonehenge, giving it it's name.

How did the stones get there?

As far as history is concerned, at the time of Stonehenge's birth, the wheel hadn't been invented yet.

No one knows for certain who built it in the first place, or exactly what it was built for.

Some people think that giants built it with Merlin the magician's help.

In the 17th century archaeologist, John Aubry, claimed the Stonehenge was built by Celtic(Druid) priests, even though it was built in a time before them.

Stonehenge was restored in the early 1900's in secret, until they got caught.

Some people think that before it was restored, that Stonehenge might have been a map of a galaxy where humans originated.

Did aliens build Stonehenge?

Erich Von Daniken is a ancient alien theorist who suggests that ancient aliens built our world.

Right next to Stonehenge, multiple crop circles have appeared.

Is there anything under Stonehenge?

Vince Gaffney did a study took x-ray technology with lasers and other various equipment, that was not previously available, too look underneath Stonehenge.

He found at least 15 other monuments underground.

Archaeologists think that there some sort of ritualistic ceremonies done there at one time.

There was over 60 remnants of human bodies found there.

People go there now to see the Summer Solstice.

Some people suggest that that is what it was built for.