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!

Happy New Year, knowledgehounds! The guys kick off 2014 by welcoming Nick Rutherford (ADHD, Major Lazer, Good Neighbor) to the studio to talk about roller coaster miracles, the longest prison sentence of all time, the secret purpose behind pirates’ eyepatches and much more.

The lovely Ally Maynard (Twitter, You seem fun podcast, comedy) swings by for a holiday edition of Today We Learned that covers everything from Sweden’s best-selling Christmas beverage to the finer points of ice hockey fighting to the secret origins of the iron maiden and more!

Comedian Tom Sibley (Goof City, We Watch Wrestling, comedy) joins the guys in the studio to talk about how eco-friendly artificial trees really are, why you likely hate the recorded sound of your own voice, and much more!

The hilarious Jonathan Sadowski (Live Free or Die Hard, Chernobyl Diaries) swings by the studio to help the guys answer burning questions about the graham cracker’s secret sexy past, where the term “riding shotgun” came from, the world’s most expensive glass of chocolate milk, and much more!

Comedian Jay Larson (The Crabfeast, Esquire's The Best Bars in America) swings by to talk about Coke's solution to Crystal Pepsi, heroin's over-the-counter roots, and drop a healthy amount of Boston-area lore with Razzle and Dan.

Can horses breathe through their mouths? Why did Londoners slaughter zoo animals in World War II? Where the hell did crackers come from? Comedian Brandt Tobler (stand-up, The 31 With Brandt Tobler) joins the guys in studio to find the answer to all of these and more.

The guys welcome comedian Yassir Lester (Black Dynamite, Mr. Pickles) to the show to talk about the controversial origins of the Ferris Wheel, the wealthiest fictional characters on the planet, and the etymology behind the word "nerd." Polish your glasses and get comfortable because you won't want to miss this episode.