There are several categories of unsolved mysteries but here goes some more well-known ones. Jack the Ripper-many suspects, no arrests. Bigfoot-some sightings, no bones. Loch Ness-centuries of Scotsmen can’t all be wrong. Stonehenge-big rocks just don’t move themselves. Shroud of Turin-may never know this one. Atlantis-please, someone find it. Aliens-ET? JFK assassination-grassy knoll anyone. Bermuda triangle-look for aliens there. Biggest mystery of all-God-no comment.