1

Santa Fe, New Mexico

Image: Doni Rath

We’ll start with one of the most logical sisterhoods on this list: Since the capital city of New Mexico shares a name with the Spanish city of Santa Fe (full name "Santa Fe de La Vega"), it seems only reasonable for them to become sister cities—a relationship that was established in 1983.

Santa Fe was one of the first sister cities to the American city, and their bond remains strong. Both cities engage in various ways, whether through true cultural exchanges, economic insights, or tourism opportunities.

2

New York City, New York

Image: Alex Haney

Since New York City is probably the most famous American city in the world, it stands to reason that "The City That Never Sleeps" has many sister cities around the globe. We could have chosen from a long list of truly outstanding cities like London and Budapest, but we ultimately decided to showcase Tokyo. After all, both NYC and the Japanese capital share a buzzing and energetic atmosphere, filled with dazzling lights and exciting opportunities.

Interestingly, many of New York City’s boroughs have sister locations of their own. For instance, Brooklyn is the sister borough of Lambeth, a neighborhood located in southern London. Not only that, Manhattan is related to the Seocho district in Seoul, South Korea, while the municipality of Ulcinj in Montenegro is a sister to Staten Island.

3

Los Angeles, California

Image: Jeremy Bishop

As a cultural hub and "the Entertainment Capital of the world," Los Angeles has several noteworthy siblings. In fact, it is one of the American cities with the most related cities, with 25 sisters as of 2024.

The city of Eilat, Israel, has the distinction of being Los Angeles’ first sister city, established in 1959. That same year, "The City of Angels" also became sister cities with Nagoya, Japan. Other notable sister cities of L.A. include Berlin, the capital of Germany, as well as Mexico City and Bordeaux, France.

4

San Francisco, California

Image: Alexey Komissarov

As we are sure you know, San Francisco was built on a monastery founded by Spanish explorers in the 18th century, and it is from this early settlement that the city gets its name. In that sense, it stands to reason that the "Golden Gate City" shares a relationship with one of the most prominent cities in Spain.

While San Francisco is a sister city to 17 other locations (including Osaka, Japan, and Sydney, Australia), Barcelona is its only Spanish sister city. The relationship was established in 2010, and in 2018, Barcelona was honored alongside all of San Francisco's sister cities with a signpost in Hallidie Plaza.

5

Austin, Texas

Image: Tomek Baginski

Who could be a better sister city to the capital of our largest Southern state than someone from the "Land Down Under"? Since 1983, Austin, Texas, has been a sister city to Adelaide, one of the most prominent southern cities in Australia.

Remarkably, these cities share a number of amazing qualities: they are both filled with lush green scenery from their many parks, and they are crossed by equally beautiful rivers. Not only that, they are both music lovers: Adelaide is the first Australian city to be declared a UNESCO City of Music, while Austin is globally known as "the live music capital of the world."

6

Boring, Oregon

Image: everett mcintire

The town of Boring, Oregon , surely has had some tough luck: after all, would you like to visit a town with that name? The truth is that there’s nothing dull about this town; it was built in a former lava field (a rather exciting landscape, if we do say so ourselves) and named after William Harrison Boring, an early resident who helped build the town.

In any case, Boring’s rather unusual name has landed this town with kindred spirits. Since 2012, this town has been part of a group known as the "Trinity of Tedium." Alongside the village of Dull, Scotland, and the community of Bland, Australia, Boring has proven again and again that friends can be found in the most unusual of places.

7

Hackettstown, New Jersey

Image: Hunter Reilly

This is the only town on this list that shares an (almost) identical name with its sister. Hackettstown, New Jersey , is famous for being the headquarters of the beloved Mars corporation, which caters to the "sweet teeth" of many Americans. It was named after Samuel Hackett, an early settler of the area who helped build the community.

In 2011, this New Jersey town declared Hacketstown, Ireland, as its sister city. In case you are not familiar with this small Irish town, here’s a fun fact that might make you fall in love with it: Hacketstown was once the home of William Presley, an ancestor of the King of Rock 'n' Roll himself.

8

Boston, Massachusetts

Image: Matthew Landers

In 1959, the city of Kyoto, Japan, became Boston’s first sister city . When you think about it, this relationship makes perfect sense: both cities are known as cultural and economic hubs and have strong and independent identities. According to the city of Boston’s official website, both of these metropolises share "strong neighborhood identities."

Throughout the decades, Boston and Kyoto have hosted several events, including annual exchange programs for high school students. Not only that, Kyoto gifted the Boston Children's Museum a "Japan House" in a display of kinship that is still warmly remembered by the capital city of Massachusetts.

9

Seattle, Washington

Image: Thom Milkovic

You might be familiar with a traditional Irish song called "Galway Bay." It has been covered by iconic American artists like Johnny Cash and Bing Crosby. This lovely tune is particularly famous among Irish Americans and speaks about nostalgia and the longing to gaze upon Ireland’s breathtaking shores. In that sense, should you suddenly feel overwhelmed by the powerful message of this song, we can offer you the next best option in America: Galway’s very own sister city, the wonderful Seattle .

Seattle and Galway became sisters in 1986, and two corresponding bronze markers were placed in each city to mark the distance between them. Many cultural events and exchanges are organized by the Seattle Galway Sister City Association, which helps build the relationship between these two wonderful cities.

10

Washington, D.C.

Image: Sara Cottle

Our capital city is considered by many to be the personification of American democracy. After all, it houses both the White House and the Capitol Building and is named after the Father of our Country. Bearing that in mind, can you think of a better sister city for Washington D.C., than the birthplace of democracy?

Washington D.C., became the sister city of Athens, Greece, in 2000. Curiously, Athens is also the sister city to another American city, although perhaps less famously: the Greek capital city also maintains a relationship with the identically named city of Athens, Georgia.

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.

1

Singing Tesla coils

In the early 2000s, engineers discovered that Tesla coils could emit tones by modulating the sparks themselves. When programmed, they could play songs using bursts of lightning as notes.

Audiences watched and listened as glowing bolts of electricity "sang" familiar tunes like movie themes. These displays, part science and part spectacle, were a short-lived trend, but they were interesting while they lasted.

Image: Brett Wharton

2

Franklin’s glass armonica

Benjamin Franklin invented many things. Among them, a glass armonica, using spinning glass bowls tuned by size . Players touched the rims with wet fingers to produce pure, haunting tones that seemed to shimmer in midair.

Its ghostly beauty amazed 18th-century audiences. Yet rumors spread that the vibrations could cause fainting or madness, making the momentum of the instrument short-lived.

Image: Karim MANJRA

3

Harry Partch’s microtonal instruments

Frustrated with the limits of Western scales, composer Harry Partch built a system using forty-three tones per octave . He crafted odd instruments from glass, bamboo, and metal to play them.

Performers had to relearn music from scratch, producing sounds that felt alien and ancient at once. His homemade orchestra became a true milestone in America’s experimental environment.

4

The theremin craze

Image: Ryunosuke Kikuno

Invented in the 1920s, the theremin created sound from invisible electromagnetic fields, played by moving hands through the air . It was one of the world’s first electronic instruments.

By the 1950s, its eerie wails filled American sci-fi movies and radio shows. Home versions soon appeared, letting living rooms buzz with strange, ghostlike melodies.

5

The Stroh violin

Back in the days when microphones were not so great at picking up sounds, early studios struggled to capture soft instruments. The Stroh violin solved that by replacing the wooden body with a brass horn that amplified sound directly .

Its brassy, nasal tone worked perfectly for primitive recording gear. Once technology advanced, the mechanical violin faded for good.

Image: Mick Haupt

6

Sun Ra’s cosmic jazz

Jazz mad scientist Sun Ra claimed he was born on Saturn and sent to Earth to spread peace through sound. His Arkestra mixed free jazz, chants, and futuristic costumes into wild multimedia performances .

Audiences never knew what to expect: space helmets, electronic keyboards, or cosmic sermons. His blend of myth, science, and swing launched Afrofuturism, a style of his own.

Image: Matt Artz

7

Singing saw

Rural American musicians once discovered that a regular handsaw could "sing" when bent and bowed like a violin . The flexible steel vibrated with a haunting, "human-like" voice.

The sound carried through old-time folk, gospel, and early film scores. Even today, the singing saw appears in grassroots festivals and soundtracks.

8

Prepared piano

Image: Andrew Petrischev

Avant-garde composer John Cage inserted screws, bolts, and rubber between piano strings, turning each key into a new percussive sound . The result was bizarre but original.

He called it the "prepared piano." Audiences heard rhythms that clanged, thumped, and chimed like a whole percussion ensemble.

9

Moog synthesizer

Image: Adi Goldstein

The Moog was born in the late 1960s with its maze of knobs and wires , and it caused a sensation among musicians. Those who experimented found endless possibilities in its electronic tones .

From the Monterey Pop Festival to Wendy Carlos’s soundtracks for The Shining and A Clockwork Orange , the Moog’s strange bleeps reshaped American pop.

10

The Singing Nun

In 1963, a Belgian nun named Sister Luc-Gabrielle unexpectedly topped U.S. charts with "Dominique," sung in gentle French. Her purity and optimism charmed listeners across the country.

Her hit briefly outshone even the Beatles. Though her fame faded quickly, the story of a shy nun reaching number one remains a sweet oddity, for sure.

Image: Pete F

11

The "Longplayer" experiment

Launched in 1999, "Longplayer" is a music piece designed to play continuously for one thousand years without repeating . It was created by American artists who joined the project to maintain its endless cycle.

The music changes subtly with time, echoing life’s slow rhythm. Its creators call it "a conversation between centuries".

12

Hard-drive symphonies

Image: Borja Verbena

In the 2010s, hobbyists reprogrammed old computer drives to "play" songs by spinning and clicking at different speeds . Each tone came from mechanical motion, not speakers.

Videos of clattering machines performing pop hits can still be found all over YouTube. These homemade orchestras turned computer nostalgia into an art.