
Show overview
99% Invisible has been publishing since 2010, and across the 16 years since has built a catalogue of 792 episodes, alongside 95 trailers or bonus episodes. That works out to roughly 410 hours of audio in total. Releases follow a weekly cadence.
Episodes typically run twenty to thirty-five minutes — most land between 18 min and 38 min — though episode length varies meaningfully from one episode to the next. It is catalogued as a EN-US-language Arts show.
The show is actively publishing — the most recent episode landed 2 days ago, with 25 episodes already out so far this year. The busiest year was 2024, with 73 episodes published. Published by SiriusXM Podcasts and Roman Mars.
From the publisher
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.
Latest Episodes
View all 792 episodesAsk Your Doctor About
A History of the United States in 100 Objects
Enshittification
Citizen of the World
Constitution Breakdown #9: Alondra Nelson
Co-op City
RoboUmp Hits the Big Leagues
Service Request #5: Dude, Where's My Car?

Service Request #4: How Does the Grid in Phoenix Work?
bonusIn a place where losing power can turn deadly, keeping the lights on is a high-stakes balancing act. What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to [email protected]. Service Request is a production of 99% Invisible and Campside Media. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Service Request #3: Why Is There So Much Litter in San Francisco?
bonusWhy did it take nearly a decade to redesign a city trash can, and why haven't more bins made the streets cleaner? What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to [email protected]. Service Request is a production of 99% Invisible and Campside Media. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Constitution Breakdown #8: Jill Lepore
bonusThis is the eighth episode of our ongoing series breaking down the U.S. Constitution. This month, Roman and Elizabeth discuss Article V, which lays out the process to amend the Constitution. Then, Jill Lepore lays out her thesis that the Constitution is truly meant to be amended, explains why Article V amendments have become functionally impossible, and tells some fascinating stories about the people who have championed amendments. The 99% Invisible Breakdown of the Constitution 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Service Request #2: Why Is This Red Light So Damn Long?
bonusWhat the world's most advanced traffic system can—and can't—do for the city that invented gridlock. What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to [email protected]. Service Request is a production of 99% Invisible and Campside Media. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Service Request #1: What Happens When I Call 311?
bonusThe surprising power of a simple phone number to connect a community. What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to [email protected]. Service Request is a production of 99% Invisible and Campside Media. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Ep 662A Man, a Plan, a Canal—Mars!
How one wealthy, amateur astronomer convinced the world Martians were real. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Ep 661Where the F*** Are We?
For centuries, the world's greatest minds were stumped by the deadly mystery of longitude, until an obsessive underdog entered the fray and changed navigation 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Constitution Breakdown #7: California AG Rob Bonta
bonusThis is the seventh episode of our ongoing series breaking down the U.S. Constitution. This month, Roman and Elizabeth discuss Article IV, which outlines the relationship between states and between states and the federal government. They add the 10th Amendment to the conversation, because that also talks about the states. Then, California Attorney General Rob Bonta joins to talk about how his office is using Article IV and the 10th Amendment to protect the state from federal overreach. The 99% Invisible Breakdown of the Constitution 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Ep 660The Longest Fence in the World
How a fence meant to protect sheep transformed the entire Australian landscape. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Ep 659Molar City
How a small Mexican border town transformed itself into the dental tourism capital of the world, where dental care costs up to 80% less than what it might cost in the United States. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Ep 434Artistic License Redux
Idaho was the first state to slap a slogan on a license plate, “Idaho Potatoes,” which may not seem like a big deal, but it turns out this idea would end up having outsized consequences, and not just for Idaho. Because what started in one state would soon spread. And when it did, the question of what should go on a license plate, and what shouldn't, would prove surprisingly contentious. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Ep 658The Em Dash
The strange history of a punctuation mark that makes writing feel human, and why people now think it proves the opposite. 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. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.