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Government & Organizations

Sidedoor

Smithsonian Institution

More than 154 million treasures fill the Smithsonian’s vaults, but where public view ends, Sidedoor begins. With the help of biologists, artists, historians, archaeologists, zookeepers and a...

Episodes

20 of 259 episodes

Meet the Beetles!

Beetles make up a quarter of all known animal life on Earth. A QUARTER! Beetles are everywhere, doing almost everything. From eating flesh o...

35:07Oct 21, 2026

The Baby Elephant and The Elixir of Poo

When baby Asian elephant Linh Mai was born at the Smithsonian’s National Zoo, her mother rejected her. Then things got worse. Linh Mai could...

35:30Oct 7, 2026

It's Season 13!

Season 13 of Sidedoor is almost here! Follow us behind the scenes at the National Zoo to meet the new baby elephant, Linh Mai. We open the v...

01:46Sep 30, 2026

The Accidental Rise of Botox

One of the deadliest poisons known to man is now used to treat wrinkles, migraines, and even, maybe, depression. How did that happen? This i...

25:16Sep 16, 2026

The Art of Slowing Down

What happens when we slow down enough to really experience art? We visit a museum to discover how slow looking at art can cultivate awe, emp...

27:26Sep 2, 2026

A Nature Lover Confronts Her Fear of Spiders

How do you stop being so afraid? Tracy Twombly had such a strong phobia of spiders, it was messing with her life — stressing her out while s...

25:04Aug 19, 2026

America, Meet America

For more than two decades, the StoryCorps silver Airstream trailer has crisscrossed the country, recording the stories of everyday Americans...

25:12Aug 5, 2026

The Gunboat Philadelphia

In 1935, a diver searching Lake Champlain found something extraordinary: a nearly intact warship from the American Revolution. It was the Gu...

32:23Jul 22, 2026

The Missing Bison

In the 1880s, a conservator at the Smithsonian set out for Montana to capture an American bison before the dwindling species vanished foreve...

32:49Jul 8, 2026

American Aspirations: A Nation in Pursuit

Smithsonian Secretary Lonnie G. Bunch III has spent a lifetime thinking about how history gets told. Before becoming the head of the Smithso...

42:14Jun 24, 2026

U.S. History in 100 Objects (with Roman Mars)

A screw. A stuffed possum. A shoe-sizing device. What could any of these objects possibly tell us about the history of the United States? Wh...

31:13Jun 17, 2026

How Can You Forget Me

Everyone thought ghosts lived in the basement of Stockton, California's old Daguhoy Lodge. So, nobody went down there. But when one man refu...

27:35Jun 10, 2026

High Art, Low Ride

How did a car with chopped suspension and hydraulics become a symbol of pride and self-expression for an entire community? We'll cruise back...

32:15May 27, 2026

The People in the Pictures

At the Smithsonian’s National Museum of the American Indian, archivists are working with Native communities to correct the historical record...

30:08May 13, 2026

May the 4th Be With You

A long time ago, in movie theaters not far away, Star Wars: A New Hope revolutionized American entertainment. In honor of May the 4th, we ex...

30:29Apr 29, 2026

Broad Stripes, Bright Stars, and White Lies

As we approach the nation's 250th birthday, we are looking back at some of the most important moments in American history. One of those mome...

30:33Apr 15, 2026

Tapir Caper

When a Smithsonian archaeology intern opened a dusty box of bones in a Panamanian warehouse, she didn't expect to find a mystery, let alone...

34:03Apr 1, 2026

Made in America

What does it look like for something to be made in America? Through the photography of Christopher Payne, we journey across the past, presen...

32:59Mar 18, 2026

Dark Matter, Bright Mind: How Vera Rubin Saw the Unseen

Something dark and invisible makes up as much as 90 to 95 percent of the universe—and it took a little girl staring out a bedroom window at...

34:01Mar 4, 2026

Chinatown Murder Case

A string of unsolved murders in San Francisco's Chinatown in the 1970s led police to the door of a young Korean immigrant named Chol Soo Lee...

48:08Feb 18, 2026