Xavier Riddle and the Secret Museum: The Exhibit 

Based on the popular PBS KIDS® TV Series 

Every single boy and girl has what it takes to change the world! 

Who’s that kid who can travel through time? It’s you! Follow the adventures of three friends as they travel back in time to learn from real-life inspirational heroes when they were kids. Sneak through the diorama to the Secret Museum and unlock your next destination with the help of hologram power! Join young adventurer Xavier Riddle, little sister Yadina, and best friend Brad, as they unravel the secrets of world-famous heroes from the past and help you learn to be a hero of the present! 

Xavier Riddle and The Secret Museum is based on the highly acclaimed children’s book series by Brad Meltzer and Chris Eliopoulos, Ordinary People Change the World. 

Xavier Riddle and the Secret Museum: The Exhibit will be at CMON from May 24, 2025 – August 31, 2025. and is included with regular admission. Plan your visit today! 

Exhibit Experiences

  • Follow Xavier and his friends as you sneak through a hidden passage in the Dinosaur Diorama and slide down a slide to enter the Secret Museum! Unlock your next time-traveling destination with the help of Hologram power. 

  • Meet paleontologist Mary Anning and uncover dinosaur bones, dig for fossils and assemble your own dinosaur skeleton.

  • Examine x-rays and conduct an experiment with lab equipment in Marie Curie’s chemist lab.

  • Explore a Secret Garden with botanist George Washington Carver to sketch beautiful plant life and plant your own seeds. 

  • In the Hall of Heroes, don a red cape like Xavier’s friend Brad, make a self-portrait, and learn how you can be a hero today.

  • In the Secret Museum, go on a scavenger hunt to find special artifacts and “easter eggs”.

  • Meet heroes like Alexander Graham Bell, Theodore Roosevelt, Sacagawea and more as you learn how they changed history!

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Xavier Riddle and the Secret Museum: The Exhibit is a nationally traveling exhibit created by The Magic House, St. Louis Children’s Museum in collaboration with 9 Story Media Group, Inc. Xavier Riddle, © and TM 9 Story Media Group Inc. All rights reserved. PBS KIDS and the PBS KIDS Logo are registered trademarks of Public Broadcasting Service. Used with permission.