30 years ago, you could buy a lifetime, unlimited first-class travel pass with American Airlines for $250,000.
14
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The cruise liner, 'Queen Elizabeth 2', moves only six inches for each gallon of diesel that it burns.
26
Stilts were invented by French shepherds who needed a way to get around in wet marshes.
45
The face of a penny can hold about thirty drops of water.
85
More than 10% of the world's salt is used to de-ice American roads.
54