Don examines a boulder covered in strange carvings that could turn American history on its head, a sword belonging to an explorer accused of treason and the marble bust of a great leader who tried to untangle an ancient puzzle.
Don tells the story of a leather harness worn by a real-life Smokey the Bear, investigates the remnants of a space mass and uncovers the shocking truth behind Napoleon's downfall with an ornate saddle.
Don showcases a former first lady's campaign to save a New York landmark, a bouncing bomb that turned the tide of World War II and a journal that documented two men as they rowed across the Atlantic Ocean.
