10,000 Dutch cows pass through the Amsterdam airport each year.

It costs more to buy a new car today in the United States than it cost Christopher Columbus to equip and undertake three voyages to and from the New World.

A rainbow can be seen only in the morning or late afternoon. It can occur only when the sun is 40 degrees or less above the horizon.

The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.

Clownfish, wrasses, moray eels, gobies and other fish species are known to change sex, including reproductive functions. A school of clownfish is always built into a hierarchy with a female fish at the top. When she dies, the most dominant male changes sex and takes her place.

The word "set" has more definitions than any other word in the English language.

The word Pennsylvania is misspelled on the Liberty Bell.

The name Jeep came from the abbreviation used in the army. G.P. for General Purpose vehicle.

The Golden Arches of fast food chain McDonalds is more recognized worldwide than the religious cross of Christianity.

A spider has transparent blood.

No word in the English language rhymes with month, orange, silver and purple.