We're all fascinated by that eerie feeling that goes along with tales of unexplained sightings and people who vanish without a trace. Here are some of "Unsolved Mysteries'" most enduring puzzles.

The Isdal Woman is one of Europe’s most chilling unsolved mysteries. In 1970, a woman’s burned body was found in Norway, but ...

The new particle, named Xi-cc-plus, carries two heavy charm quarks and is about four times heavier than an ordinary proton.

On March 8, 2014, a routine international flight turned into one of the greatest mysteries in aviation history .

One wildly quirky restaurant in Arizona delivers eccentric decor, unforgettable atmosphere, and a meal that feels like part of the adventure.

Public interest in the mystery was further reignited years later following the 2018 death of Baillee Schneider, another young ...

Dwarfing every living thing around them millions of years ago, Prototaxites have long defied scientific classification ...

Tucked between the sofa and an inset bookshelf in our family room is a wicker basket that is filled with socks. If you ...

The UFO Watchtower has become a point of pride for the community, a unique attraction that puts Center, Colorado, on the map and draws visitors from around the world. It’s created a cottage industry ...

The best addiction you can have is probably a book addiction, and Renaissance Books in Milwaukee is the dealer who keeps prices so low you’ll wonder if they’re running a charity operation. Spoiler ...

The magnum opus of particle physics is far from complete, requiring physicists to devise many alternatives—some weirder than ...