1

The moon landing: staged in Arizona?

Image: NASA

Back in 1969, Americans watched Neil Armstrong take one small step for man on TV. But not long after, rumors started floating around that it was all filmed on a Hollywood-style set somewhere in the desert. Books and even a movie helped the idea spread. Still, with hundreds of pounds of moon rocks and decades of scientific study to back it up, it seems pretty clear the only thing fake was the rumor itself.

2

The dead internet theory: bots gone wild

Image: Waldemar

According to this theory, you might be talking to a wall online. The idea is that most of the internet isn’t run by people at all but by bots—that is, automated programs pretending to be humans. They supposedly post, reply, and argue, all to keep clicks coming. Even if bots are increasingly popular on some sites and apps, it’s evident that this is nothing but a crazy conspiracy theory!

3

Subliminal advertising: blink and you’ll miss it

Image: Wojtek Witkowski

Remember when people thought ads were sneaking messages into our brains? Some authors were convinced that companies were hiding secret images in movies and commercials to mess with our minds. This theory hit headlines in the ’70s, but most of those claims didn’t hold up under scrutiny. Marketing and advertising do know some tricks around our minds, but your sudden craving for popcorn probably has more to do with the smell than secret mind control.

4

Paul is (not) dead

Image: IJ Portwine

Back in the swinging ’60s, a bizarre rumor began circulating: Paul McCartney had supposedly died and been replaced by a lookalike. Fans claimed to find hidden clues in Beatles albums, like barefoot walks and cryptic lyrics. The theory quickly crossed borders and spread worldwide. But don’t worry, Paul was (and still is) very much alive, touring, and giving interviews.

5

Roswell: crash course in confusion

Image: Rishabh Sharma

Something definitely fell near Roswell, New Mexico, in 1947—remember that? The question is, what was it? The government first hinted at flying saucers , then changed the story to a weather balloon. That was all it took for conspiracy theories about aliens to bloom. Years later, it turned out the object was actually a Cold War–era military balloon from a classified program. No aliens—just some top-secret tech.

6

Chemtrails: clouds of confusion

Image: Val Vesa

Those streaks behind planes? They’re called contrails, and they’re mostly made of water vapor. But some believe they’re really "chemtrails" (chemical agents sprayed into the sky). Theories range from weather control to population mind games. Scientists have tested the air and found nothing unusual, but some folks still keep looking up and wondering. What do you think?

7

COVID and 5G: a confusing combo

Image: Shiwa ID

When the pandemic hit, it brought more than just a virus. With so much uncertainty, conspiracy theories spread just as fast. One unusual claim linked COVID-19 to 5G technology, even suggesting that vaccines contained tracking chips. Researchers and doctors around the world quickly debunked it all, but it just goes to show how fear and confusion can breed some pretty wild ideas.

8

Birds aren’t real... or are they?

Image: Gareth Davies

This one takes the cake. A satirical movement claims that birds are actually government surveillance drones . What started as a joke by a college student quickly went viral, billboards and all. While some people mistook it for a real conspiracy theory, it’s actually a commentary on how misinformation spreads.

9

Flat Earth: going against the grain

Image: Elena Mozhvilo

Despite centuries of science and countless space photos, some people still believe the Earth is flat . They point to the horizon, question gravity, and invent creative explanations for eclipses and orbits. It’s a belief often fueled by mistrust or ideology, but the round Earth, seen from space, keeps on spinning just the same.

10

Denver Airport: baggage and bunkers

Image: Rocker Sta

Denver’s airport has some… interesting décor. Murals of chaos, red-eyed horses, and creepy gargoyles have sparked rumors that it’s hiding secret bunkers for the Illuminati. While the truth is less exciting (just over-budget construction and bold public art), the place does have a weird vibe that fuels the fun of imagining a secret space beneath the baggage claim. If only!

1

12 years of all tweets

Image: Marten Bjork

If you were an active and public Twitter user between the years 2006 and 2017, guess what? Your words are preserved in the Library of Congress .

The platform’s first twelve years are contained in a digital collection meant as a historical record of a new communications channel. From 2018 onwards, the Library started acquiring only "particularly interesting" tweets.

2

Oddly specific movies, like "Shrek" or "Wall-E"

Image: Denise Jans

The Library preserves film culture through the National Film Registry and other collections.

Recent registry additions have included animated hits such as Shrek , while the Library’s preservation programs and official announcements explain why even mainstream animated features matter as cultural artifacts worth saving. The Registry also contains enduring classics such as Grease , Citizen Kane , and The Wizard of Oz .

3

Specific songs, like "Livin’ La Vida Loca"

Image: Bruno Guerrero

Music enters the Library’s life via the National Recording Registry and the Music Division. Ricky Martin’s "Livin’ La Vida Loca" is one of the recordings the Library has recognized for cultural impact; these entries help posterity understand what particular songs meant to listeners at the time.

Other anthems are also preserved in the collection, like Aretha Franklin’s " Respect " and Journey’s " Don’t Stop Believin. "

4

A moldy wedding cake

Image: gryzoon

A sliver of wedding cake from P.T. Barnum’s era spectacles survives in the Library of Congress’s Manuscript Division as a historical oddity. Donated in the 1950s, it now sits darkened with age and mold.

The cake came from the wedding of Charles Stratton, who was 25 years old and just 35 inches tall at the time. Stratton performed in Barnum’s shows under the name General Tom Thumb, delighting audiences with his song-and-dance routine.

5

A map of the Grand Canyon made of chocolate

Image: Steve Johnson

Yes, that is a real thing. The Geography and Map Division highlights a 1991 topographic map of the Grand Canyon molded in chocolate , made by the Chocolate Topographic Company.

6

What Lincoln was carrying when he died

Image: Engin Akyurt

The Library’s Treasures and related pages describe the modest, deeply human contents found on Abraham Lincoln after he was shot : a silk-lined wallet with newspaper clippings, a Confederate five-dollar bill kept as a curiosity, spectacles, a pocketknife, a handkerchief, and a watch fob, among other everyday items.

7

Locks of hair from Jefferson, Beethoven, and others

Image: benjamin lehman

Why not? The Library’s Manuscript and Music Divisions preserve numerous strands of hair attributed to notable figures : from presidents such as Thomas Jefferson to composers like Ludwig van Beethoven, as well as other cultural icons including Walt Whitman, Clara Barton, and George Washington!

8

Thomas Jefferson’s vanilla ice cream recipe

Image: Colin Fearing

Among Jefferson’s papers, which the Library and Monticello both reproduce and discuss, is his handwritten vanilla ice cream recipe : cream, egg yolks, sugar, and vanilla, frozen using ice and salt. A fundamental (and surprisingly delicious) document of history!

9

A precursor of the Monopoly Game (The Office Boy)

Image: Kathy Marsh

Monopoly’s genealogy includes several predecessors. Most famously, Elizabeth Magie’s 1904 The Landlord’s Game is the well-documented precursor.

Other commercial board games , such as Parker Brothers’ The Office Boy (an 1889 Horatio Alger–style career game), along with various moral and occupational boards, helped shape the emerging mass-market game industry that ultimately produced Monopoly .

1

Coca-Cola vs. Pepsi

One could say that the "Cola Wars" began in the early 1900s, but in all truth, they exploded during the TV ad boom of the 1970s and 1980s . Both brands poured millions into marketing, celebrity endorsements, and taste-test campaigns.

While Pepsi tried to appear youthful and rebellious, Coke leaned on its classic Americana image. Everyone has a favorite. Which one is yours?

Image: Declan Sun

2

McDonald’s vs. Burger King

Since the 1950s, these two massive burger chains have fought to define the American fast-food experience. McDonald’s boasted consistency and golden arches recognized worldwide, while Burger King prided itself on flame-grilled flavor .

Each tried to outdo the other with catchy slogans and mascots. Even today, "Have it your way" and "I’m lovin’ it" can be heard and seen from locations all over the world.

Image: P Kara

3

Hatfields vs. McCoys

In the hills along the border between Kentucky and West Virginia, two families embarked on a bloody feud after the Civil War. What began as a dispute over land and livestock transformed into years of violence and revenge .

The feud became a national symbol of rural grudges and lawlessness. Thankfully, today, descendants have made peace.

Image: Kelly Sikkema

4

Democrats vs. Republicans

Since the 19th century, America’s two main political parties have clashed over nearly everything : economics, social policy, and even the role of government itself. Their competition defines national elections.

Though the issues evolve, the rivalry remains constant. Campaign slogans change, but the fight for America’s political throne never ends.

Image: Zoshua Colah

5

Ford vs. Chevrolet

In garages and racetracks across the country, Ford and Chevy fans have argued for generations . From muscle cars to pickup trucks, their rivalry helped shape the American auto identity.

Each brand claimed better performance, style, or reliability. "Built Ford Tough" and "Like a Rock" became slogans that shaped the automobile industry in America.

Image: Dimitri Karastelev

6

Apple vs. Microsoft

Two tech titans named Steve Jobs and Bill Gates , fought for control of the personal computer revolution for decades. Microsoft’s software dominated offices, while Apple excelled in design and innovation .

Their contrasting visions fueled decades of progress and shaped modern computing. Today, the rivalry continues in phones, tablets, and the cloud.

Image: Sahej Brar

7

Nike vs. Adidas

What began as a sneaker battle grew into a global pop culture competition . Nike’s swoosh symbolized American innovation, while Adidas built on European craftsmanship and sport heritage.

Athletes, rappers, and fashion icons fueled the feud. From basketball courts to runways, the feud is very much alive and well.

Image: Malia Moore

8

Yankees vs. Red Sox

Baseball’s most storied rivalry dates back to 1919, when Boston sold Babe Ruth to New York . The "Curse of the Bambino" haunted Red Sox fans for generations.

Decades of heartbreak and dramatic comebacks ensued, and the fans make sure to keep it that way, at least for the fun of it.

Image: Sudan Ouyang

9

Hamilton vs. Burr

In the early days of the country, Alexander Hamilton and Aaron Burr’s political rivalry turned into personal hatred. Their ideological clashes came to a head in 1804.

They met for a duel in New Jersey, where Hamilton was fatally shot . The tragic encounter became one of early America’s defining stories.

Image: Florian Herzog

10

Elvis Presley vs. The Beatles

When The Beatles first came to America in the 1960s, f ans drew lines between the King of Rock ’n’ Roll and the Fab Four . Each represented a cultural moment and a musical evolution.

Though they met once, their contrasting styles symbolized changing generations, and the fictitious rivalry was fueled by the fans.

Image: Max Kukurudziak

11

Edison vs. Tesla

The famous "War of Currents" placed inventor Thomas Edison’s direct current against Nikola Tesla’s alternating current . Both dreamed of lighting up America, but only one system could win.

Their competition sparked demonstrations, smear campaigns, and innovation. In the end, Tesla’s AC prevailed, but Edison’s legacy lives to this day.

Image: Alex Haney

12

Lakers vs. Celtics

For a long time, the NBA’s biggest rivalry has crossed coasts and generations. The Celtics dominated the early years, while the Lakers reigned in more recent decades.

From Russell vs. Chamberlain to Magic vs. Bird, their clashes created unforgettable moments in basketball history.