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99% Invisible

by Roman Mars

Design is everywhere in our lives, perhaps most importantly in the places where we've just stopped noticing. 99% Invisible is a weekly exploration of the process and power of design and architecture. From award winning producer Roman Mars. Learn more at 99percentinvisible.org.

From the show's RSS feed, refreshed Oct 30, 2026. Source feed.

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Episodes

  1. 100 Objects #23: Coin From the Ship of Gold

    On August 20th, 1857 a ship set sail from the Port of San Francisco with 600 people and thousands of pounds of gold. That gold was destined for the vaults of New York City banks, but it never made it. Instead, the ship sank to the bottom of the ocean, taking all that gold with it. Executive...

  2. Zone Zero

    Across the West, there's a contentious debate playing out over how to adapt homes and neighborhoods to this era of increasingly extreme wildfire risk. In Berkeley, California, it's become a particularly emotional fight because of a very specific architectural history that began all the way back…

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  3. 100 Objects #22: AOL Disc

    In 1998, the recording industry was thriving. But the company pressing more compact discs than anyone else in America wasn't a record label…it was an internet company: America Online. The AOL Disc was a marketing coup—hugely successful. It’s not an overstatement to say that it’s the campaign that...

  4. Doktoro Esperanto

    Esperanto is what linguists call a “constructed language.” It isn’t attached to a nation or a region, and it didn’t evolve from another language over time. Instead, nearly 150 years ago, someone decided to sit down and design the whole thing from scratch. That someone was L. L. Zamenhof, also…

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  5. 100 Objects #21: Window from the House of D

    In 1932, the Women's House of Detention—New York City's first women's prison—opened in the heart of Greenwich Village. It was opened to make "wayward" women quiet, private, and properly feminine. And the building had one unique feature originally meant to be a sort of kindness—a special kind of...

  6. Audio Guide of the Imperfections of a Perfect Masterpiece

    This episode is sponsored by Acura. From the outside, the building is a light gray spiral, and from the inside, the art is displayed on one long ramp that curves up towards a glass skylight in the ceiling. We’re going to take the greatness of this building as a given. What we’re going to focus on...

  7. Tony Hawk's Real-Life Willy Wonka

    A desert train built for Tony Hawk leads into the strange and thoughtful world of N.D. Austin, a designer of real-life experiences. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting...

  8. The Problem With Football Helmets

    Football helmets can prevent devastating injuries, but they may also help make an inherently violent game feel safer than it really is. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by…

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  9. (Not Just) Another Brick in the Wall

    A closer look at the messy, beautiful bricks hiding across Chicago. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  10. 100 Objects #20: AA Sobriety Chip

    Comedian, writer, and podcaster Jamie Loftus has always known about Alcoholics Anonymous. As a kid, she loved the album where her dad kept all his AA chips — that little piece of plastic that marks a day, a month, a year of sobriety. Now as an adult, Jamie wanted to understand where that little...

  11. Tootle of a Devilish Song

    How a Swiss mountain call crossed the Atlantic and helped define the sound of country music. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  12. 100 Objects #19: Western Electric 500 Series

    This episode is sponsored by Claude. For problems worth solving, get started with Claude at Claude.ai. The Western Electric 500 Series Telephone used to be everywhere. For over 50 years, it was the default telephone for homes, offices and literally anywhere else you might need a phone… but how…

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  13. The Rocky Statue

    How a movie prop became one of Philadelphia’s most beloved monuments, and sparked a decades-long fight over where it belonged. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting...

  14. 100 Objects #18: Hair Relaxer

    Somewhere between 85 to 95 percent of Black women in the United States have used a chemical hair relaxer at least once in their lifetime. It is a ubiquitous American product with a complicated legacy: it built Black wealth and opened economic doors, but also taught generations to see their hair…

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  15. Doves Type

    A legendary typeface, a spectacular friendship breakup, and one extremely committed act of revenge. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  16. 100 Objects #17: M43 Field Jacket

    Articles of Interest host Avery Trufelman joins Roman to tell the incredible story of the American military’s jacket problem: How should the military outfit its soldiers to make them as safe and effective as possible? The answer was the M43 Field Jacket, which not only changed what it meant to be…

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  17. Kobuk the Destroyer

    Every product has to be tested somehow, and sometimes that means finding increasingly creative ways to break it. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting...

  18. 100 Objects #16: Wheel of Fortune Dalmatian

    This episode is sponsored by Claude. For problems worth solving, get started with Claude at Claude.ai. If you watched Wheel of Fortune in the 1980s, you probably remember one prize more than all the others: the ceramic Dalmatian. For a brief moment, that prize—perhaps the ultimate useless...

  19. 1-800-PODCAST

    This week, two stories about the strange power of the 1-800 number. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  20. 100 Objects #15: Bundy Clock

    In 1888, Willard Bundy created the first employee "time clock" — essentially a souped-up grandfather clock that could, for the first time, produce an accurate record of when workers arrived and left. Though Bundy’s aim was simple, his invention soon sparked a change in American life far broader...

  21. Spolia

    Spolia, from a Liverpool neighborhood to ancient Rome. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  22. 100 Objects #14: Basketball Sleeve

    Producer and reporter Ramtin Arablouei (co-creator of the NPR show, Throughline) has a simple question: why are so many NBA players wearing a compression sleeve on their arm? It seems like everyone has one. Do they all have elbow issues? The answer is really the story of Allen Iverson, an…

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  23. The Bone Wars

    Two rival paleontologists turn a hunt for dinosaur bones into an all-out scientific war. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  24. 100 Objects #13: The Sand Letters

    This episode is sponsored by Claude. For problems worth solving, get started with Claude at Claude.ai. On his deathbed, President Chester Arthur ordered that all of his personal and professional papers be burned. Three barrels of documents went up in flames. But 23 letters survived, initialed…

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  25. Bamboo Is Innocent

    A devastating fire put one of Hong Kong's oldest building traditions on trial, but the real story runs much deeper. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting...

  26. 100 Objects #12: "Negro Cloth"

    In 1821, two Rhode Island brothers went looking for buyers for their woolen fabric, and stumbled into a lucrative, captive market: Southern slave plantations. Roman Mars and historian Seth Rockman trace the strange life of so-called "Negro cloth" — a textile category defined by nothing but who it...

  27. The Borrowed Nature of Biomimicry

    Behind every perfect nature-inspired design is a far more complicated story. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  28. 100 Objects #11: Brannock Device

    In 1925, the world saw the birth of what just might be the greatest gadget in American History: the Brannock Device. The metal contraption transformed the way we measure feet forever, and more than a century after its invention…it has barely changed. Roman Mars and journalist Paul Lukas trace the...

  29. The Finnish Baby Box

    A simple cardboard box helped transform Finland into one of the best places in the world to raise a child. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  30. 100 Objects #10: Nunchaku

    In the early 1970s, Bruce Lee made nunchaku (nunchucks) cool — kids were building their own and buying them in record numbers. But the nunchucks craze coincided with something much bigger: the birth of a radical new Asian American identity. Roman Mars and historian Jeff Chang trace how nunchucks...

  31. The Original 100 Objects

    Neil MacGregor reflects on creating the landmark series that changed how people think about history. Then, revisit the Rosetta Stone, the artifact that unlocked ancient Egypt. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free...

  32. 100 Objects #9: Missing Children Milk Carton

    In 1982, a twelve-year-old paperboy, Johnny Gosch, vanished from a quiet Iowa street and sparked an unlikely campaign: the faces of missing children printed on milk cartons by the billions. Roman Mars and Annie Brown trace how a regional dairy campaign exploded into a national symbol — and how…

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  33. If Mosquito Hawks Can Fly

    A Louisiana man born into slavery designs an airship with hopes to take flight. Those plans are interrupted, but maybe not forever. Listen to Family Lore wherever you get your podcasts. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early.…

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  34. 100 Objects #8: Billy Possum

    In 1902, an American classic was born: the teddy bear. Named after President Theodore Roosevelt, the toy became a huge hit, and sparked an idea…maybe every president from then on should have their own viral stuffed animal. Jon Mooallem tells the story of the ill-fated billy possum, and how our...

  35. The Score

    We keep score of everything these days. But what happens when the numbers start changing what we actually care about? Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting...

  36. 100 Objects #7: The Otis Pamphlet

    Before the Declaration of Independence was even a twinkle in the founding fathers' eyes, there was James Otis. Journalist Jack Hitt returns to tell the wild, tragic story of America’s forgotten proto-founding father and his inflammatory 1764 pamphlet. A story that is, in many ways, the story of…

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  37. Transatlantic Fiber-Optic Expialidocious

    Before the internet went global, one undersea gamble made it possible. Jane Ruffino’s story, "Say Goodbye to the Undersea Cable That Made the Global Internet Possible," appears in the May-June issue of Wired magazine. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible...

  38. 100 Objects #6: "Sharpened Screwdriver"

    In this episode, Roman and historians Heather Ann Thompson and Elliot Williams tell the story of the sharpened screwdriver: the object at the heart of the 1984 Bernhard Goetz subway shooting. In a difficult moment in New York City, four Black teenagers were transformed in the public imagination...

  39. The Most Exciting Change America Has Ever Seen

    Billions of state quarters disappeared from circulation...and that was exactly the plan. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  40. 100 Objects #5: Blue Back Speller

    In this episode, Roman and historian Imani Perry follow the Webster Blue Back Speller from the early days of the United States, to the heart of Black intellectual life. Through the lives of Booker T. Washington and W. E. B. Du Bois, Roman and Imani uncover how a single object became a gateway to...

  41. The Horn That Divided the World Cup

    Love it or hate it, one buzzing horn changed the sound of the World Cup forever. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  42. 100 Objects #4: Lowe's Gas Bag

    In 1861, one man and a “gas bag” filled with hydrogen sparked America's obsession with going higher, farther, into the unknown. In this episode, Roman and journalist Jack Hitt tell the story of Thaddeus Lowe — showman, scientist, and dreamer — whose balloon flight from Cincinnati went wildly off...

  43. Karaoke Videos

    Behind every cheesy karaoke track was a surprisingly ambitious filmmaking experiment. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  44. 100 Objects #3: The Pension Files

    What do Civil War pension files reveal about one of history's most successful slave rebellions? Historian Edda Fields-Black joins Roman to trace a story of fire, flight, and freedom — beginning on a South Carolina rice plantation in 1863, where a Union raid liberated over 700 people in a single...

  45. The MAPL Test

    Canada reshaped its music industry with a quirky radio rule that changed who got heard. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

  46. 100 Objects #2: 60-Degree Screw

    In the early 20th century, nothing quite fit — fire hoses couldn't connect to one another, football teams played with different balls, traffic lights meant different things in different states. Then World War II exposed the deadly cost of incompatibility, and the US quietly imposed a single...

  47. Drug Story: Ivermectin

    What started as a revolutionary treatment for river blindness became something far messier. Listen to Drug Story wherever you get your podcasts! Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or…

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  48. 100 Objects #1: The Century Safe

    In 1876, Americans filled an iron safe with objects meant to tell their story — to be opened a century later. Roman Mars and historian Jill Lepore trace its long wait, from Reconstruction to Watergate, and the surprising, unsettling contents that emerged in 1976. What do the objects we choose to...

  49. Ask Your Doctor About

    As wild and random as they might seem, a lot of work—and even poetry—goes into coming up with today's catchiest, most unforgettable drug names. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by...

  50. A History of the United States in 100 Objects Trailer

    America’s 250th birthday calls for a history as sprawling and contradictory as the country itself. A History of the United States in 100 Objects — hosted by Roman Mars and produced by BBC Studios and 99% Invisible — tells that history one thing at a time. A gold coin from an 1857 shipwreck that...

About this show

Design is everywhere in our lives, perhaps most importantly in the places where we've just stopped noticing. 99% Invisible is a weekly exploration of the process and power of design and architecture. From award winning producer Roman Mars. Learn more at 99percentinvisible.org.

Hosted by

Roman Mars

Produced by SiriusXM Podcasts and Roman Mars

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Frequently asked questions

How many episodes does 99% Invisible have?

99% Invisible has 838 episodes on PodParley. The most recent episode was published on November 6, 2026.

What is 99% Invisible about?

Design is everywhere in our lives, perhaps most importantly in the places where we've just stopped noticing. 99% Invisible is a weekly exploration of the process and power of design and architecture. From award winning producer Roman Mars. Learn more at 99percentinvisible.org.

How often does 99% Invisible release new episodes?

99% Invisible publishes weekly, based on its 838 episodes since September 2010.

Who hosts 99% Invisible?

99% Invisible is created and hosted by Roman Mars.
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