I never knew that

Only a quarter of the Sahara Desert is sandy
Most of it is covered in gravel, though it also contains mountains and oases.
And here’s another fact that everyone gets wrong, it isn’t the world’s largest desert, Antarctica is.

Each limestone/granite block that makes up the Great Pyramid of Giza weighs 2.5 tons, and there are 2.3 million of them.

The most-visited country on the planet is France, with 90M visitors.

Mickey Mouse was originally called Mortimer!
For a while in the 1920s, Walt Disney named his legendary rodent Mortimer.
His wife thought his idea deserved a catchier name, so he went with Mickey instead.

While everyone refers to this  ÷  as a division sign, it's also called an ‘Obelus’.

The name was created by a mathematician in Switzerland called Johann Rahn.
The term appeared in his book ‘Teutsche Algebra’ in1659.

A single strand of Spaghetti is called a “Spaghetto.”

Astronaut is a compound word derived from the two Ancient Greek words “Astro,” meaning “star,” and “naut” meaning “sailor.”
So astronaut literally means “star sailor.”

Lemons float, but limes sink.
Because limes are denser than lemons, they drop to the bottom of a glass, while lemons float to the top

“The sixth sick sheik’s sixth sheep’s sick” is the toughest tongue twister in the English language.

The deepest place on Earth is the Mariana Trench in the Pacific Ocean.
It’s 36,201 feet (11,034m) deep.
That’s almost seven miles!

The longest reigning monarch ever was Louis XIV of France.
He ruled for 72 years, 110 days after taking the throne at age four.

‘Petrichor’ is the term given to that unique scent following a rain shower.

Owls don't have eyeballs, they're more like eye tubes.
They're elongated and held in place by a bony structure in the skull called sclerotic rings.
Because of this, owls can't move or roll their eyes within their sockets, that's where the heightened neck mobility comes in.