Archaeologists have ascertained that the stone monument dates back to — BC and believe that it was erected by Neolithic inhabitants.

The theories, thus, are extensive. Some believe it to be a result of glacial movement or a man-made miracle, while others believe it foretells of alien invasion or is a place filled with healing powers.

The most commonly accepted theory is that Stonehenge is a burial ground. King Arthur, a sword in the stone, his faithful magician, Merlin, and a roundtable of knights — the stuff legends and myths are made of.

Apparently though, the entire King Arthur story was a fabrication that was created to boost the morale of the English troops.

The mythology stems from various literary sources, which all glorify Arthur as the king who led a victory over the Saxons and created a ruling empire over England, Ireland, Iceland, Norway and Gaul in the sixth century.

Though there is no real proof such a man existed, historians continue to debate the fact. There is evidence to suggest Arthur may have been a composite character, with most semblances to a Roman commander, Lucius Artorius Castus, who lived in the second century.

Despite the widely accepted belief that King Arthur was a fictitious creation, there are still a number of people who argue otherwise. By All That's Interesting.

From the bog bodies of Europe to Jack the Ripper, we look at the mind-boggling unsolved mysteries left by our ancestors.

Share Tweet Email. Report a bad ad experience. All That's Interesting. Previous Post. You might also like. The legend originates from a series of three ciphertexts that Thomas Beale entrusted to a friend before disappearing and never to be seen again.

The first ciphertext has never been solved, but it is purported to contain the location of the treasure, whilst the second which has been solved details the contents of the treasure.

The third ciphertext, also unsolved, supposedly lists the names of the treasures owners as well as their next of kin. Perhaps you can challenge this one of the biggest unsolved mysteries of the world and see if that is really a treasure.

On December 5 th , , the Mary Celeste , a British merchant ship, was found adrift in the Atlantic Ocean with all passengers and crew missing.

The ship contained no sign of a struggle, had plenty of food and water, was still seaworthy and contained an almost untouched cargo. The only anomaly was that a single lifeboat was missing.

Despite a lengthy investigation, none of the passengers or crew were ever seen or heard from again and this great unsolved maritime mystery led to theories of water spouts, piracy, deadly fumes and underwater earthquakes.

In , in the impoverished area of Whitechapel, London, a sadistic serial killer began to murder prostitutes. The Bermuda Triangle is one of the great unsolved mysteries of the world, a section of ocean in the western North Atlantic where ships and aircrafts have disappeared under deeply suspicious circumstances.

There is also the case of the USSCyclops , a US Navy boat that disappeared in with all crew on board as well as the Connemara IV , a pleasure yacht, found adrift in with all the crew missing.

This is another world wide famous unsolved mystery of the world. Many of the unsolved mysteries of the world are actually murder mysteries with one of the most infamous cases being that of the "Zodiac Killer".

In the decades since, only one of these ciphers has ever been decoded. Numerous suspects have been investigated, but despite the enormous man hours that went into the investigation, both the murders and the letters remain unsolved.

In the 25 years since its dedication, three of these encrypted messages have been deciphered, but the fourth remains a mystery.

Unofficially, it is a hotbed of rumors and conspiracy theories, mostly relating to UFO sightings. Although discounted as a myth by most scientists, there have been countless reported sighting of gigantic footprints, roars in the night and fuzzy photographs showing giant beast like creatures.