Beaked whales are famously private—even their mass grave was hiding.

Martin Couney, an American obstetrician, saved more than 6,000 babies. 

America's most futuristic luxury train hurtled into a Nevada canyon after someone pried the spikes out of a rail and shifted it four inches inward.

The stela where the date was carved depicts a ruler and a Jaguar god deity, showing how Maya kings used the Long Count calendar for power.