The Disastrous North Pole Balloon Mission of 1897 - A balloon that is steered via drag ropes. The method is wildly ineffective. The three drag ropes on the Eagle didn’t even work long enough for the balloon to fully clear its launch area.
For the past 100 years, a box of never-before-seen negatives has been preserved in a block of ice in Antarctica. The negatives are believed to be from Ernest Shackleton's 1914-1917 Ross Sea Party, a group that was stranded in the hut during a blizzard when their ship blew out to sea. They were eventually rescued, but the box remained buried until now.