The tip of a bullwhip moves so fast that it breaks the sound barrier. The crack of the whip is actually a tiny sonic boom.

In Greece, the climate is so warm that many of the cinemas do not even have roofs.

Corals take a long time to grow. Some corals only grow one centimeter in one year.

The smile is the most frequently used facial expression. A smile can use anywhere from a pair of 5 to 53 facial muscles.

The longest chapter in the Bible is Psalm 119, which is 176 verses.

Toronto was the first city in the world with a computerized traffic signal system.

The hydra, which is related to the jellyfish, can grow its body back in a couple of days if it is cut in half.

The largest employer in the world is the Indian railway system in India, employing over 1.6 million people.