Have You Ever Wondered... What is a Rube Goldberg machine? Who was Rube Goldberg? Why are Rube Goldberg machines so fascinating?

Have You Ever Wondered... What is an invasive species? What harm can invasive species do? What are some examples of invasive species?

Today’s Wonder of the Day was inspired by Ryan. Ryan Wonders, “What is the Mobius Strip?” Thanks for WONDERing with us, Ryan! Can you picture what we’re talking about? It helps to make your own Möbius ...

Have You Ever Wondered... What's so special about Broadway? Why is Broadway called “The Great White Way"? What is the longest-running Broadway show of all time?

Today’s Wonder of the Day was inspired by Aubrey from El Cajon. Aubrey Wonders, “What is a biodome?” Thanks for WONDERing with us, Aubrey! A biodome is a self-contained, self-sustaining, human-made ...

Today’s Wonder of the Day was inspired by Addison. Addison Wonders, “ who invented porta potty's ” Thanks for WONDERing with us, Addison!

Today Wonderopolis is exploring the tradition of the quinceañera. Put on your party shoes and join us as we celebrate this very important sweet 15.

Today’s Wonder of the Day was inspired by Sophie from Columbia, SC. Sophie Wonders, “Why is April 11, 1954 the most boring day in history?” Thanks for WONDERing with us, Sophie! Do you ever watch the ...

Today’s Wonder of the Day was inspired by Anna. Anna Wonders, “How do the claws of wolfs and bears retract and reatract” Thanks for WONDERing with us, Anna! If you’ve spent much time around cats of ...

Today’s Wonder of the Day was inspired by tajveer. tajveer Wonders, “why don't plastic decompose why does it take that long” Thanks for WONDERing with us, tajveer! Why? Unlike organic materials, like ...

Who Was Grace Lee Boggs?W e learn in school about historic U.S. figures who fought for social and civil rights. Dr. Martin Luther King, Jr., Angela Davis, Malcolm X, and Rosa Parks were all famous for ...

How Do We Wonder?C alling all Wonder fans—today’s Wonder is for you! If you’re here, you already know how much you can learn and how much fun you can have on Wonderopolis. But have you ever wonder ...