In 1876 a handful of mobsters botched a morbid plan to kidnap the body of Abraham Lincoln and hold it ransom. The hapless grave robbers were arrested just a few days later. Fearing another attempt, the government secretly hid the body of the sixteenth president in an unmarked grave for 25 years. Then in 1901, under the urging of Robert Lincoln, the president’s only surviving child, Lincoln’s body was dug up and placed inside a steel cage, lowered into a 10-foot-deep vault, and buried under tons of concrete. He’s still there today, in his tomb, on the grounds of Oak Ridge Cemetery.