though she allows that the case will probably never be definitively solved. This article was originally published on mentalfloss.com as 15 of History’s Greatest Mysteries.

From the truth of Aerea Targaryen's death to the origins of the oily black stone, these are the biggest lingering mysteries ...

Gardner Museum Robbery: In 1990, thieves stole half a billion dollars in masterpieces from the Isabella Stewart Gardner Museum. Who orchestrated the infamous heist ...

Here are seven of the biggest body bogglers ... fat goes toward forming the baby's brain," Williams told Life's Little Mysteries. But the theory has yet to gain universal acceptance.

The Salem Witch Trials: A tragedy leads to one of the darkest chapters in early American history, as fear rips through the small town of Salem, Massachusetts. (S5, ep ...

Its disappearance becomes one of the war's greatest unsolved mysteries and the quest for this treasure lasts over 75 years.

Throughout the history of automobiles, some iconic vehicles have vanished without a trace, leaving behind enduring mysteries ...

This was shortly after the death of Hammurabi, the Babylonian king whose code of laws is remembered as one of the first in history. The Great Pyramid of Giza was built almost 1,000 years before.

The Tower of London has played many important roles throughout history. Not only has it ... But, perhaps one of the tower's biggest mysteries is the story of 'the Princes in the Tower' and exactly ...

One of biology's biggest mysteries has been solved using artificial intelligence, experts have announced. Predicting how a protein folds into a unique three-dimensional shape has puzzled ...