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Why Do Highways Have Mile Markers?

Today’s Wonder of the Day hits the road for a counting adventure!

#985

Why Do Highways Have Mile Markers?
What Is a Triathlon?

If you like to swim, bike, and run, then today’s Wonder of the Day is right up your alley!

#2143

What Is a Triathlon?
How Do You Use the Metric System?

We hope you get a Metric ton of enjoyment from this Wonder of the Day!

#2360

How Do You Use the Metric System?
What Is a Milestone?

Today we’re talking stones, but you won’t find these in a rock garden. What’s a milestone? Let’s find out!

#100

What Is a Milestone?
How Are Fog and Mist Different?

Today’s Wonder of the Day is quite the MISTery!

#2414

How Are Fog and Mist Different?
How Do You Build a Tunnel Underwater?

Today’s Wonder of the Day digs deep to uncover a construction conundrum!

#406

How Do You Build a Tunnel Underwater?
Can You Walk from Mexico to Canada?

If you’re coming to Wonderopolis today, you’d better bring your hiking boots!

#1491

Can You Walk from Mexico to Canada?
What Is the Smallest Country in the World?

The size of today’s Wonder of the Day may just surprise you!

#2466

What Is the Smallest Country in the World?
What Happened to Zealandia?

We hope you brought your scuba suit! Today’s Wonder of the Day takes us deep into the sea.

#2482

What Happened to Zealandia?
How Many Bridges Cross the Amazon River?

If you’re coming to Wonderopolis today, you’d better bring a boat!

#2196

How Many Bridges Cross the Amazon River?
How Do You Zorb?

Today’s Wonder of the Day may be one of the most abZORBing wonders you’ll ever read!

#609

How Do You Zorb?
Where Is the Tallest Building?

Join us in Wonderopolis today for a Wonder of the Day that scrapes the sky!

#1443

Where Is the Tallest Building?
Where Is the Coldest Place on Earth?

It doesn’t get any colder than where Wonderopolis is going today!

#481

Where Is the Coldest Place on Earth?
Can You Ride a Sound Wave?

Grab your ears and surf on over to Wonderopolis on waves not made of water!

#1242

Can You Ride a Sound Wave?
Where in the World Would You Wander?

We hope you wander over to Wonderopolis today!

#1042

Where in the World Would You Wander?
Where Is Siberia?

Wonderopolis takes a trip to one of the biggest, coldest places in the world today!

#2082

Where Is Siberia?
Where Is the Fastest Roller Coaster?

Hang on tight! Today’s Wonder of the Day is full of twists, turns and maybe even a loop-de-loop or two.

#251

Where Is the Fastest Roller Coaster?
What Is a Volcano?

We’re about to erupt with excitement. Join us in Wonderopolis today for a Wonder of the Day that will blow your top!

#139

What Is a Volcano?
What Is the Longest Word?

Don’t say we didn’t warn you! Today’s Wonder of the Day is really, really long!

#737

What Is the Longest Word?
What Is a Zamboni®?

Today’s wonder is on thin ice! Join us as we climb behind the wheel of the Zamboni.

#109

What Is a Zamboni®?

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