Tae Kwon Do is only around 60 years old.
64
There are more telephones than people in Washington, D.C.
121
Passengers on the Beijing subway can pay with plastic bottles.
29
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
476
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
The best time for a person to buy shoes is in the afternoon. This is because the foot tends to swell a bit around this time.
49
Water is actually naturally blue.
48