Today botox is one of the world's most well-known wrinkle treatments, as well as a go-to joke in the realm of pop culture. But where did this treatment come from, and what on Earth does it have to do with sausage? Join Ben, Noel and Max as they trace the origins of botox to one man's unending obsession with food safety and rotting pork in this classic episode.

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Books are amazing. When you think about it, a good book can be a portal to another world. A book can a time machine, and the right story can genuinely change a person's life... so long as you can actually read it. In today's episode, Ben, Noel and Matt delve into the strange stories of two books that -- we kid you not -- absolutely no one on Earth can read.

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During the era of Louis XIV, Julie D'Aubigny became one of the most popular criminals in all of high society. In today's episode, the guys welcome returning guest Ben Thompson, author and creator of Badass of the Week, to learn more about the swordfighter, opera singer, nun-heister and all-time badass known as La Maupin.

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Today Jell-O and other gelatin foodstuffs are generally relegated to world of desserts, but this wasn't always the case. In fact, gelatin took a long, strange path from ancient history to modern-day grocery shelves -- and got pretty gross along the way. Tune in to learn more about the bizarre world of savory gelatin in this week's classic episode.

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In the history of roller coasters, one thing became clear: the public wanted extremes -- the fastest, the highest, the most dangerous of rides. In part two of this week's series, the guys explore the rise of the first legitimate roller coaster tycoon, and ask their fellow Ridiculous Historians for help finding the best roller coasters of the modern day.

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If you described the concept of a roller coaster to an alien, they'd probably be baffled: Why on Earth are humans purposely recreated the sensation of falling, flying and -- quite possibly -- feeling close to death? In the first part of this special two-part series, the guys explore the origin story of modern roller coasters, from the old days of "Russian Mountains" to an amusement arms race that continues today: the ongoing quest to build the biggest, highest, fastest rides on the planet.

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In the mid-19th century, London was literally filling with corpses. When the city was in the grips of a cholera epidemic, the already-overfilled cemetaries couldn't handle the extra bodies. So when there's literally no room in the soil for another dead body, what's a city to do? To the creators of the London Necropolis Railway, the answer was simple -- build a train for the dead. Tune in to learn some grisly, ridiculous history with Ben and Noel.

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In a burst of meta-humor, the Encyclopædia Britannica defines encyclopædia as "reference work that contains information on all branches of knowledge or that treats a particular branch of knowledge in a comprehensive manner." It's high praise -- but if there's any single book that's earned the right to describe itself this way, it's this one. Tune in as Ben, Noel and Max delve into the history of one of the world's most famous reference works (and check out our earlier episode on the Oxford English Dictionary, as well).

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