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Wonderopolis

What Is Braille?

Join us in Wonderopolis today to learn how it’s possible for people all around the world to read and write without the benefit of sight!

#93

What Is Braille?
How Long Can Your Fingernails Grow?

Today’s Wonder of the Day is going to be tough as nails!

#559

How Long Can Your Fingernails Grow?
How Hot Is the Sun?

We hope you’re a big fan of today’s Wonder of the Day. Try to stay cool if you can!

#332

How Hot Is the Sun?
How Big Is the Solar System?

You won’t believe how big today’s Wonder of the Day is!

#1592

How Big Is the Solar System?
What's the Biggest Thing You Can See?

Today’s Wonder of the Day is huge. We’re not kidding. It’s so big you’ll have to see it to believe it!

#364

What's the Biggest Thing You Can See?
What Are Shadow Puppets?

If it wasn’t sunny in Wonderopolis today, you wouldn’t be able to see the Wonder!

#574

What Are Shadow Puppets?
How Old Are Fairy Tales?

If all the fairy tales got mixed up, what stories would they tell? Let’s find out today in Wonderopolis!

#21

How Old Are Fairy Tales?
Where Is the Oort Cloud?

We believe you’ll think today’s Wonder of the Day is out of this world!

#1830

Where Is the Oort Cloud?
How Hot Is the Sun?

We hope you’re a big fan of today’s Wonder of the Day. Try to stay cool if you can!

#332

How Hot Is the Sun?
How Far Can a Sneeze Travel?

We're saying "Gesundheit!" to today's Wonder of the Day!

#1800

How Far Can a Sneeze Travel?
What Is Pole Position?

Rev your engines and get ready for a Wonder of the Day that will speed by in a flash! Take your position and get ready for the race to the finish!

#238

What Is Pole Position?
Can You Fold a Piece of Paper More Than Seven Times?

Today’s Wonder of the Day might be quite a challenge for fans of origami!

#1692

Can You Fold a Piece of Paper More Than Seven Times?
What Is a Spit Valve?

We don’t mean to toot our own horn, but we think today’s Wonder of the Day will be music to your ears.

#399

What Is a Spit Valve?
Who Is Uncle Sam?

Today’s Wonder of the Day features everyone’s favorite uncle!

#527

Who Is Uncle Sam?
How Do Mood Rings Work?

We hope you’re in the mood for an interesting Wonder of the Day today!

#412

How Do Mood Rings Work?