They've been discovered at Roman-era sites, but no one knows what they're for. By Tom Metcalfe.

Selika Lazevski exists in six photographs and nowhere else. She was a black Amazon in Belle Epoque Paris, a horsewoman without a horse. By Susanna Forrest.

While there was no actual disappearance of schoolgirls at Hanging Rock either around the turn of the century or in the 19-teens when Lindsay attended Clyde School, there was a traumatic disappearance in Lindsay’s near future when she wrote her manuscript: none other than the cutting of her final chapter, with its beauty and strangeness and its mathematical-physical musings. By Eric Wargo.

A group of researchers believes Amelia Earhart made several attempts to reach civilization in her final days — and that her messages got through.

In the last eight years, 15 human feet have washed up on the shore. By Stacy Conradt.

Shortwave Trading, Part I. By Alexandre Laumonier.

Residents affected by the “Windsor Hum” complain of sleeplessness, depression and headaches. It is one of many mysterious sounds reported throughout the world.

A forensic linguist from The University of Manchester who analysed letters supposedly signed by Jack the Ripper has concluded that two of the most famous examples were written by the same person. The Whitechapel murders that terrorised London in 1888 are still remembered thanks to the legend of Jack the Ripper, who was never caught.

A man died after he burst into flames on a street in Hull, England, on Wednesday, two weeks after London police issued a plea for witnesses of another similar incident. Daniel Lingwood, a resident of Hull, looked out of his window to see flames across the road, according to a local newspaper. He immediately rushed outside to help the victim, who has not been named.

Robin was abandoned as a baby 74 years ago. Now thanks to DNA and his daughter's detective work he finally knows where he came from.

A year and a half after it was proposed, astronomers are still debating whether the giant mystery planet actually exists.  By Ramin Skibba.

Despite making a poor first impression, jellyfish are among the most unusual animals on Earth and deserve a second chance to introduce themselves. By Philip Lamb.

The long read: When two 12-year-old girls in Wisconsin invited their classmate for a game of hide-and-seek in the forest, they planned to murder her. They later claimed they were forced to act by the mythical Slender Man

With the drug war’s “disappeared” numbering in the tens of thousands, some families take up the search for loved ones on their own. By Azam Ahmed.

Psalm Isadora escaped a Christian cult and grew to become a sex and healing guru to the masses. Then she was found dead. Many of her disciples aren’t convinced it was a suicide. By Dana Kennedy.

“Stars just don’t do that.” By Sonya Collins.

A study of the subglacial caves could reveal new undiscovered animal or plant species living comfortably due to the heat of an active volcano. By Victor Ferreira.

Skinwalker is the blanket explanation used by the Ute tribe of northeastern Utah to explain a myriad of frightening, seemingly paranormal events that have occurred in the Uintah Basin for hundreds, if not thousands of years. By Jeremy Corbell.

Some of these treasures are now likely destroyed, including the Ark of the Covenant, but some may still exist and be recovered — such as the crown jewels of Ireland, a 333-carat pink diamond and mysterious treasure depicted in a Dead Sea Scroll. By Owen Jarus.

How does someone get away with helping a foreign adversary? Writer Sarah Laskow digs into the gonzo story of an American acquitted of spying for the Soviets—even after he confessed to it.