The world's largest black hole is Sagittarius A* in the center of the Milky Way galaxy. It has a mass of over 4 million suns.

The first commercial passenger flight lasted only 23 minutes

Human teeth are the only part of the body that cannot heal themselves

A newborn's skull consists of 44 separate bones.

The first car to have seat belts as standard equipment was the 1959 Volvo.

It's almost impossible to get too much sugar from fresh fruit.

Harry Styles has four nipples

The shortest war in history was between Britain and Zanzibar in 1896, lasting just 38 minutes.

Flamingoes aren't born pink.

The world's longest walking distance is 14,000 miles

One part of Istanbul is in Europe and the other is in Asia

Thomas Edison is the reason you love cat videos

The fear of the number 13 is called triskaidekaphobia.

The shortest war in history was between Britain and Zanzibar in 1896, lasting only 38 minutes.

There's enough gold inside Earth to coat the planet

The world?s oldest cat lived to 38 years and three days old.

The world's largest library is the Library of Congress in Washington, D.C. It has over 160 million items in its collection.

The world's smallest country is Vatican City. It is only about 1 square mile in size.

Lemons float, but limes sink