These discoveries freaked people out! Welcome to WatchMojo, and today we’re counting down our picks for the creepiest archaeological finds that are still unexplained decades – or even centuries – later. Our countdown of the scariest unexplained discoveries ever made includes Headless Vikings, Shackled Skeletons, The Unidentified Man of Sligo, Neanderthal Cannibalism, and more! Which unexplained discovery do you find the most haunting? Let us know in the comments below. Watch more great history videos here: Top 10 Worst Decisions in History: https://youtu.be/TjPmk62WajE Top 10 Mind-Blowing Alternate Histories That Almost Happened: https://youtu.be/3M4aYRHnqpA Top 10 Historically Accurate Movies: https://youtu.be/_q8NCKx3Pgw Become a channel member to get access to special perks: https://www.youtube.com/channel/UCaWd5_7JhbQBe4dknZhsHJg/join Play our Daily Point Battles to earn MojoPoints and qualify for CASH BATTLES! Check it out: WatchMojo.com/play Have your idea become a video! https://wmojo.com/suggest Subscribe for more great content! https://wmojo.com/watchmojo-subscribe Visit our shop for awesome merch! https://shop.watchmojo.com/ Your trusted authority for Top 10 lists, reviews, tips and tricks, biographies, origins, and entertainment news #Scariest #Unexplained #Discoveries #Discovery #Unsolved #History #AncientHistory #Scary #Creepy