A 20th century without Hitler, the Internet or President Obama.
Two nuclear bombs that could have exploded in North Carolina miraculously did not.
Crewmen aboard a World War II bomber etched their lovers' names on board. But that didn't save the plane from a grim fate.
Construction workers discovered the live WWII bomb, prompting the evacuation of 2,260 people.
The discovery of the Imperial Japanese Navy's mega-submarine, the I-400, solves a decades-old mystery.
The 2,200-year-old tomb contained the warrior's skeleton holding a sword between his legs.
It's of special interest to many because it was taken as the country was coming out of the Depression.
Laying deeper than the Titanic, the wreck is believed to hold the largest haul of precious metal lost at sea.
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