All episodes
9 Weird Things Hiding Underground
Why Were C.S. Lewis and J.R.R. Tolkien Frenemies?!
9 Wonderful Wintertime Inventions
9 Door-Busting Facts About Holiday Shopping
What Are the Secrets of the World’s Largest Birds?
Taking Risks and Traveling the World, with Tom Freston!
How Scientists Are Reviving Lost Smells
Super Food Science Excellence Trivia Blow Out! with Science Friday
Why Does New Zealand Have an Official Wizard?
9 Saucy, Savory Facts About Pasta
What Did Teddy Roosevelt Do to Dr. Seuss?!
9 Mustache Facts to Kick Off Movember!
Exploring Alien Science with Daniel Whiteson!
PTG Recommends: Origin Stories!
9 Spooky, Ooky Facts About Charles Addams
9 Halloween Facts to Stuff in Your Pillowcases!
Being Curious for a Living with Josh & Chuck from Stuff You Should Know
Are We Doomed to Lose Curiosity As We Age?
Can Pets Be Curious? How About Wild Chimps?
Is Curiosity Dangerous?
What Does Curiosity Really Do To Our Brains?
How Come Esperanto Never Took Off?!
Can Pneumatic Tubes and Robot Sharks Solve Our Garbage Crisis?
Why Did Venus Flytraps Develop a Taste for Meat?
The Mystery of the Missing Tintin Plays
What’s the Best Day of the Week?
Was Tintin a Real Person?
9 Facts to Get You in the Apple-Picking Mood
9 Sneaky Ways to Send a Message
Did Picasso Try to Steal the Mona Lisa?
Why Is It So Hard to Get Rid of Lice?!
Does Pizza Bring Out the Worst In People?
What's the Worst Mascot of All Time? (And Who Invented Mascots, Anyway?)
Are There Benefits to Procrastinating?
A Hungry Fungus and the Epic Quest to Save Wet Books!
Dancing Molecules and a Plywood Miracle!
Caffeinated Concrete and a Song About Particle Physics!
Self-Healing Glass and Virtual Dolphins!
Jetlagged Hamsters and the Smell of Space!
Why Does Rocking Put Babies to Sleep?
What Are the Greatest Things We Didn't Know About Brazil?
9 Head-Spinning Facts About Carousels
Who Invented the Dunce Cap? (And Other Unusual School Supplies)
9 Crazy Stories About Debt (Including when you could pay your rent in Eels?!)
How to Build the Ultimate Theme Park!
9 Bonzer Tips for Traveling Across Australia
Why Is It More Dangerous to Be a Park Ranger Than an FBI Agent?
What Did Ancient Egyptian Bread Taste Like? with Sam Kean
Where Do the World's Best Band Names Come From?
9 Highly Reactive Facts About the Periodic Table
How Close Are We to Resurrecting a Woolly Mammoth?
Is 3D-Printed Food Worth Eating?
9 Deliciously Frosty Facts About Ice Cream
9 Bizarre Areas of Expertise
What's the Most American Place in the World?
Debunking Muscle Myths with Casey Johnston!
Part-Time Genius on The Puzzler: "True True False False" w/ Will Pearson and Mangesh Hattikudur
Your Weird Summer Travel Guide!
Can You Make a Puppet Out of Ice?
Who Invented Fentanyl, and How Did It Become a Crisis?
Why Do NASCAR Fans Drive Trucks and Formula One Fans Drive Yachts?
Is Mexico City Really Sinking?
Why Can’t You Copyright a Chicken Sandwich?
Inside the Fact Vault: Bird Drama and a Tormented Statue
What's the Secret to Nintendo's Success?
9 Prime-Time Secrets of TV Guide
Thanks, Canada! 9 Great Inventions from the Great White North
Are Pigeons Smarter Than They Look?
Did a Volcano Eruption Really Help Invent the Bicycle?
Why Do We Blow Out Birthday Candles?
What's the World's Most Ridiculous Video Game?
Let's Kiss the Cod in Newfoundland!
PTG Classic: 9 Surprising Facts about Moms
Why Chickens are Smarter Than You Think! with Sy Montgomery
PTG Classic: Who's the Greatest Pirate of All Time?
9 Super Catchy Facts About Theme Songs
Inside Baseball: Magic Mud, Torpedo Bats, and High-Altitude Homers
PTG Classic: How Did P. T. Barnum Trick the World Into Riding Elevators?
9 Extremely Valuable Facts About Pennies
PTG Classic: Why Are We So Fascinated By the Titanic?
PTG Classic: What Flavor Is Dr Pepper?
9 Page-Turning Secrets of the Library of Congress
PTG Classic: What's the Science Behind Introverts?
Drama Kings: Meet Emperor Norton, the Pickle King & other Self-Declared Royalty
PTG Classic: Why Are There So Many Cheese Crimes?
9 Extra-Spicy Facts About Atomic Fireballs
9 Surprising Tips for Visiting Bhutan
PTG Classic: What are the Craziest Applications for Lasers? (Including washing your dishes!)
Are Cow Burps Hurting the Environment?
Who is Pablo Eggs-cobar? (And why is he obsessed with bird eggs?!)
PTG Classic: How do Dollar Stores stay in Business?
SURPRISE! It's a Part-Time Genius Pop Quiz
9 Very Important Facts About Donuts
25 Greatest Science Ideas Countdown: Day 5
25 Greatest Science Ideas Countdown: Day 4
25 Greatest Science Ideas Countdown: Day 3
25 Greatest Science Ideas Countdown: Day 2
25 Greatest Science Ideas Countdown: Day 1
What Caused the Golden Age of Novelty Songs?
How did Thurgood Marshall become such an Incredible Lawyer?