What was the original time machine in Back to the Future before the Delorean? How was the Panama Canal constructed? Comedian Jackie Kashian (Dork Forest, This Will Make an Excellent Horcrux) joins Razzle and guest host Ben Gleib to answer these and more.

What cologne drives tigers wild? Where did Pop Rocks come from? Why do we call marijuana "pot" anyway? Matt Cohen (Bagged & Boarded, Stoner Science) joins the guys in the studio to answer all of these questions and much more.

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What are the origins of the Shamrock Shake? When did France stop using the guillotine? What does pesto have to do with one of America's most famous slogans? Matt Kirshen (Comedy, Probably Science, Bigipedia) joins Razzle and guest host Ben Gleib (Last Week on Earth) to tackle these burning questions and much more.

Comedian Chris Gore (Celebrities Poop, Podcrash, G4 joins the guys in the studio to find out how to spot a fake Russian passport, learn about the secret origins of hot chocolate, which celebrity sold his sister on eBay and more!

Books made from human flesh. The craziest FBI sting operation ever. The origins of the Super Soaker. Cole Stratton (Pop My Culture, SF Sketchfest) joins the guys to discuss all of this and more!

Where the hell did spring break come from anyway? What mysteries does Graceland contain? What in the world is a backronym? Music legend Susanna Hoffs (The Bangles) drops by the studio to help the guys find the answers to all of these and more.

What are the Super Bowl's secret origins? Was Christopher Lee a spy? Did we lose a lot of money on prop bets? Comedian Danny Lobell (Modern Philosophers) joins the guys in the studio to find out the answers to all this and more.

The inimitable Joel Stein (TIME, Man Made, New Yorker) swings by the studio to grill Razzle about philosophy and talk the weird history of dentures, the UK’s strict facial hair policies, and much more. Today’s episode is brought to you by TeeFury, so be sure to check out their awesome pop culture clothing options at http://www.teefury.com/nerdist!

What was the Babylonian punishment for watering down beer? Where did the weekend come from? Why do they put mirrors in elevators? Dave Holmes (International Waters, MTV, Reno 911) joins the guys in the studio to find the answers to all of that and more!