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99% Invisible

99% Invisible
Author: Roman Mars
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Copyright © 2025 Roman Mars. All rights reserved.
Description
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.
785 Episodes
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A missing car reveals the confusing rules, murky fees, and private actors behind modern towing.
What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.
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.
In 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 servicerequest@99pi.org.
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.
Why 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 servicerequest@99pi.org.
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.
This 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.
What 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 servicerequest@99pi.org.
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.
The 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 servicerequest@99pi.org.
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.
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.
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.
This 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.
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.
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.
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.
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.
This is the sixth episode of our ongoing series breaking down the U.S. Constitution.This month, Roman and Elizabeth discuss Article III, which establishes the judicial branch, alongside New York Times chief legal affairs correspondent, Adam Liptak.
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.
Throughout Africa and beyond, Zimbabweans are known for choosing some of the most bold, head-turning English-language names. Zimbabwean producer Kim Chakanetsa tells the story of how her country's journey from colonial rule to independence shaped the nation's unique naming traditions.
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.
This week we're featuring Audio Flux, a short-form audio challenge where artists squeeze surprising stories into three minutes.Find out more about Audio Flux by visiting audioflux.orgFollow Audio Flux on Instagram: @audiofluxingFeatured Audio Flux stories include:The Sound of Silence by Gregory Warner and Sana KrasikovIn Between Silence by Talia AugustidisThe Ghost on Side B by Katelyn Hale Wood with sound design by Alan GoffinskiFirst Words by Peter Lang-StantonRed Card by Vivien Schütz and Laura Rojas Aponte
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.
A young designer faces an impossible brief and discovers the spark that will define his legendary career.
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.
Performance changing gear, a Titanic era nurse with unbelievable resilience, and an ingenious art vending project reveal how innovation and endurance shape unexpected worlds.
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.
From rogue stop signs to rooftop mini golf, discover how chaos and creativity quietly shape the urban world.
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.
This is the fifth episode of our ongoing series breaking down the U.S. Constitution.This month, Roman and Elizabeth turn to the rest of Article Two with former CDC director Dr. Tom Frieden, talking about the experience of being a highly trained expert in an inherently political institution within the executive branch. Dr. Frieden was also the New York City Public Health Commissioner under Mayor Bloomberg from 2002 to 2009, and he discusses the difference between running a city and a federal health agency.Elizabeth also explains the constitutional powers and limitations of the presidency, including hiring and firing, impeachment, pardons, and presidential duties—and how President Trump and the current Supreme Court are upending those powers.
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.









The intro and outro music was ..."hot", like a microphone is hot.There was clipping, @31:23 it is noticeable on the beat. I of course can't tell if it's baked into the music for, or if it happened on the edit.
Saba Sobel's book was made into a 2 part TV miniseries, staring Michael Gambon and Jeremy Irons. Can be found on YouTube. I think one was in 720p resolution. 😊
Maybe for future reference, you could put the name(s) of the guests in the description text?
An excellent example of "perfection" as the enemy of "good." Could a version of Harrison's first design have been used while Improvements were made?
U.S. citizens receive affordable dental care at sketchy clinics in Mexico, while Mexicans who enter the U.S. illegally receive free dental care at clinics supported by U.S. citizens.
As a professional writer and editor, it's annoying to have people who can barely write a postcard declare a well-crafted, human-written piece of work is the product of AI. They think it's an indicator because they're ignorant of how and when to use it.
So appreciate this! I've been using the em dash since I discovered it in fifth grade! I have to go back and edit it out now or people think I used AI. It's so frustrating! I naturally use it and I touch type very fast so I forget completely to switch it out. Bah.
This podcast is pure bullsh*t. for a 2 minute content they load it with 8 minutes of advertising. People get a life.
I mentioned to my grade 12 math teacher Tony Blonski: " could a circle created by measuring an infinite number of incrementally intersecting lines and thus producing an infinite number of sides?" and 50 years later I hear about the same concept on 99% Invisible. wow!
Love when the public wins one.
100% won't be reading this book, or any others of this person after listening to this pod. I question how much time she's spent here, based on how the geography is discussed (yah, grew up with a view of the smelter and going to same high dchool as bundy - different decade though). sounds like she's making a stretch overall. either that or I should be expecting my classmates to pop up as serial killers ???
Such a great story!
Cool to hear about RogerWilco, massive props! The one before TeamSpeak, Ventrilo and Discord.
Couple points. One of the best things about this conversation is what my maumau would say, "Don't throw out the baby with the bathwater." Sound scientific method is not binary (and nature rarely is). Equally baffled why that same maumau knew to tell my mother to use a tissue or elbow during cough/sneeze yet public health officials didn't get it. Loving memories of my mother slapping my arm "Cover your mouth!" New K-N95 is always in my purse, but I rarely use it without cause these days
This Supreme Court terrifies me. Even women's most modest reproductive rights trampled from complaint suits brought about in strategically selected geographical courts on the FDA is a very good example. p.s. Raised my kid in parks, wild local green space, and LIBRARIES... from using conference space to help fellow nursing mothers to family Thurs at the planetarium. We have to stop banning books placed in appropriate sections. Erosion of basic human rights is happening at warp speed.
At the end, I cried too. Thank you for all these years.
"Yes" to the soothing simplicity of Perfect Days! ❤️
it's my friend Mike Brady from Oceanliner Designs! Great episode!
What a great episode! John found a new passion. I can't wait to read this book. Great job Roman!
Roman Mars + John Green = 2 people who are working to make the world better. 💙💚