Dyatlov Pass Incident
If you like this sort of thing, the Unresolved Mysteries subreddit [0] is a great resource. Some plausible theories include avalanches and military experiments [1] [2].<p>You could waste many days reading through Wikipedia's Unusual Articles [3]. If you like aliens, here are two worthwhile reads:<p><a href="https://en.wikipedia.org/wiki/Barney_and_Betty_Hill" rel="nofollow">https://en.wikipedia.org/wiki/Barney_and_Betty_Hill</a><p><a href="https://en.wikipedia.org/wiki/Travis_Walton_UFO_incident" rel="nofollow">https://en.wikipedia.org/wiki/Travis_Walton_UFO_incident</a><p>Good luck sleeping with the lights off tonight :)<p>[0] <a href="https://www.reddit.com/r/UnresolvedMysteries/" rel="nofollow">https://www.reddit.com/r/UnresolvedMysteries/</a>
[1] <a href="https://www.reddit.com/r/UnresolvedMysteries/comments/1u031h/by_far_my_favorite_unresolved_mystery_the_dyatlov/" rel="nofollow">https://www.reddit.com/r/UnresolvedMysteries/comments/1u031h...</a>
[2] <a href="https://www.reddit.com/r/UnresolvedMysteries/comments/2q5bih/dyatlov_pass_a_slightly_different_theory/" rel="nofollow">https://www.reddit.com/r/UnresolvedMysteries/comments/2q5bih...</a>
[3] <a href="https://en.wikipedia.org/wiki/Wikipedia:Unusual_articles" rel="nofollow">https://en.wikipedia.org/wiki/Wikipedia:Unusual_articles</a>