Killing an estimated 1,800: A disaster lost in the lingering fog of the Civil War, sinking of steamboat Sultana …
That time in 1919 a WWI German U boat washed ashore on a British Beach and ruined ” seaside day” for everyone
The Convair Model 116/118, a flying car prototype which managed 66 test flights as a prototype but never made it into mass production
Nazi Nature: Mysterious WWII forest swastika remained unnoticed until 1992 – not too sure how you would miss it though!