I’m a sucker for mysteries.  Grim though the subject matter may be, the disappearances of people are particularly intriguing.  Here then, from io9, are 8 Mysterious Disappearances (And The Clues That Keep People Guessing):

http://io9.com/8-mysterious-disappearances-and-the-clues-that-keep-pe-1683740875

The mystery of the Lost Colony of Roanoke Island is a personal favorite, though one can guess what happened to them.  What makes it more intriguing is what the colonists left behind, scrawled on trees.

Not to be outdone, Cracked.com offers several intriguing mysteries of their own.  First up, 5 Creepiest Disappearances:

http://www.cracked.com/article_19765_the-5-creepiest-disappearances-that-nobody-can-explain.html

The one I find most intriguing is Jean Spangler (#3) and her ties to, of all people, Kirk Douglas!

Next up, 5 Creepy Unsolved Disappearances That Nobody Can Explain (although the article has almost the very same title as the one above, it is a different):

http://www.cracked.com/article_21624_5-creepy-unsolved-disappearances-that-nobody-can-explain.html

Next, 5 Creepiest Unsolved Crimes Nobody Can Explain:

http://www.cracked.com/article_18459_the-5-creepiest-unsolved-crimes-nobody-can-explain.html

Check out #1, The Lead Masks Case.  While I suspect that the capsules eaten were indeed poison, the rest of the case is just so damn bizarre.

Finally, 6 People Who Just Fucking Disappeared:

http://www.cracked.com/article_16501_6-people-who-just-fucking-disappeared.html

If all those links don’t give you goosebumps, I don’t know what will!