1

American Goldfinch

If you’ve spotted a drop of sunshine landing on your feeder sometime in the summer, that’s the American Goldfinch. Males turn a vivid yellow each year thanks to a complete molt, usually finished by late May.

They’re found coast-to-coast but are especially common in the northern and central U.S., where they favor open meadows and backyard thistle feeders. Unlike most songbirds, they nest late, often waiting until July when thistle seeds peak. If you see a tiny bird—barely 5 inches long—bouncing through the air in a roller-coaster flight pattern, you’ve found the American Goldfinch.

2

Blue Jay

Blue Jays are known for being loud, confident, and colorful. Throughout the eastern half of the U.S., from Florida to Maine, they flash electric-blue wings marked with black "bar codes." Their blue color is actually a light trick: microscopic feather structures scatter wavelengths to create the hue. Another fun fact: back in the 1970s, researchers discovered they can mimic hawks, a clever way to scare other birds away from food.

3

American Robin

Long before digital calendars, people guessed the seasons thanks to this bird. The American Robin’s spring chorus has been recorded in journals as early as the 1800s, marking the end of winter across most of the U.S. They’re widespread, found in all lower 48 states and even in Alaska during summer. Robins stand upright, tugging worms from lawns with that unmistakable rusty-orange chest. Adults measure about 10 inches long, roughly the size of a small paperback book.

4

Ruby-Throated Hummingbird

If you’ve ever seen a green flash zip past your porch faster than a camera shutter, it may have been a Ruby-throated Hummingbird. It is the only hummingbird species that breeds east of the Mississippi. It weighs 0.2 ounces—as little as a nickel!—yet crosses the Gulf of Mexico during migration. Males display an iridescent red throat that lights up when sunlight hits at the perfect angle. A single feeder with a simple sugar solution can lure them in from May through September.

5

Northern Cardinal

Northern Cardinals look like Christmas on wings, and it’s easy to see why. Males glow bright red, while females wear warm browns brushed with hints of red. They live year-round in the eastern and central U.S., especially in woodlots and suburban yards. Cardinals measure about 9 inches long and crack seeds with thick, powerful bills. Their "what-cheer!" call is one of the most recognized bird sounds in North America.

6

Song Sparrow

At first glance, this little brown bird might look like one of many, but listen closely. Song Sparrows have been studied for their remarkable vocal variety; a single male may sing more than 10 distinct song types. They’re common nationwide, from the Atlantic to the Pacific, but differ subtly by region. They’re small—around 6 inches—but their voice carries surprisingly far.

7

Black-Capped Chickadee

A bird the size of a tennis ball—about 0.3 ounces—with the confidence of a much larger creature: that’s the Black-capped Chickadee. They have a surprisingly sophisticated communication system. In fact, biologists discovered that the number of "dee" notes in their call changes depending on the threat level of predators.

Found across the northern U.S. and in the Rockies and Appalachians, they sport crisp black caps and snow-white cheeks. Offer sunflower seeds, and they’ll visit you all winter.

8

Northern Mockingbird

What if one bird could perform an entire playlist? Northern Mockingbirds—common throughout the South, Midwest, and many western suburbs— can mimic over 100 sounds, from other birds to squeaky gates. In the 1960s, scientists confirmed their habit of singing at night, especially males guarding territory.

They’re roughly 10 inches long, the size of a stretched-out flashlight. Their slender gray bodies and white wings make them easy to spot when they swoop from fence posts.

9

Baltimore Oriole

The Baltimore Oriole can be described as "a flame carried by wings", since males sport brilliant orange while females show softer yellows.

These bright orange migrants breed across the Northeast and Midwest before wintering in Central America. Their hanging pouch nests—up to 8 inches deep—are woven with fibers like tiny hammocks swaying in the breeze. Orioles love tall shade trees and can hang upside down to sip nectar or jelly.

10

American Crow

Think of crows as neighborhood detectives. Studies show they can recognize human faces and remember them for years. Found in every U.S. state except Hawaii, American Crows are large—about 17 inches long—and solid black from bill to tail. Their aerial circling and communal roosts, sometimes numbering thousands, are especially common in the Midwest. They travel in family groups and announce their presence with a clear "caw!"

11

Black-billed Magpie

If you’ve ever driven through the Rockies or the Great Plains, you’ve likely seen this striking bird swooping low over fields. Black-billed Magpies, common from Nevada to the Dakotas, wear glossy black feathers with a blue-green sheen and long tails that can reach 12 inches—nearly half their total length. Their dome-shaped stick nests can be 3 feet across, and they thrive in open country and ranchlands.

12

Tufted Titmouse

One of the most charming feeder visitors in the eastern U.S., the Tufted Titmouse has a soft gray coat, a tiny crest, and warm orange patches under the wings. Though small—around 6.5 inches—they have a bold, ringing call: peter-peter-peter . Their range has expanded steadily northward, partly thanks to backyard feeders. Another fun fact: titmice store seeds one by one in tree bark, creating "pantries" they revisit all winter.

13

‌

1

The Big Apple: New York City

Image: Nik Shuliahin

Everybody knows "The Big Apple" refers to New York— the city that never sleeps . But why, exactly? Is it because there’s a worm (the subway) underneath it? Or is it a metaphor for something we strive for?

2

The Big Easy: New Orleans

Image: mana5280

It sure feels easy to stroll through New Orleans, a city known for its laid-back atmosphere and rich cultural energy, where jazz bands can spontaneously form on any corner and lively public celebrations are always just around the bend. But what’s the story behind its nickname?

3

Motor City: Detroit

Image: Doug Zuba

The most populous city in Michigan, the nickname "Motor City" certainly feels right for its bustling streets and large industrial background —but what exactly led to the adoption of this powerful nickname?

4

Sin City: Las Vegas

Image: Grant Cai

We all know the famous adage: "What happens in Vegas, stays in Vegas." Given the city’s notorious nightlife and gambling scene , it’s understandable—you might prefer to forget how you lost all your savings on a slot machine. But is that the only reason it earned its infamous nickname?

5

The Windy City: Chicago

Image: Ozzie Stern

Situated on the shores of Lake Michigan, Chicago's nickname might seem to stem from its exposure to harsh weather —but sometimes, the obvious answer isn’t the correct one. Is it really the weather, or is something stranger at play?

6

The Mile High City: Denver

Image: Emmanuel Appiah

Is Denver really a "Mile High" city because of its geographical proximity to the towering Rockies, or is it just a nod to its ever-expanding skyline? Keep reading to find out!

And now, the answers:

7

The Big Apple: Horse-racing origins

Image: Taylor Sondgeroth

The nickname originated in the 1920s as horse-racing slang , where "The Big Apple" informally referred to New York’s prize racetracks. Jazz musicians later popularized it, and a 1970s tourism campaign ultimately cemented it as a symbol of the city’s cultural and financial prominence.

8

The Big Easy: Chill and jazz

Image: Robson Hatsukami Morgan

If you followed our line of thought—you were right! This nickname emerged from the city's reputation for its relaxed lifestyle and vibrant jazz scene . While there are many theories about who first used the term—and whether it was originally meant to be derogatory—one thing is certain: all New Orleanians agree it 100% reflects the city’s unique blend of music, culture, and laissez-faire attitude.

9

Motor City: Infinite assembly lines

Image: Austrian National Library

Detroit earned its nickname as the birthplace of the American auto industry. Henry Ford’s revolutionary assembly line and the rise of car manufacturing giants cemented the city’s status as the global automotive capital of the 20th century. In fact, it remains home to the headquarters of America’s largest auto manufacturers—General Motors, Ford, and Chrysler.

10

Sin City: Prohibition defiance

Image: Jakub Dziubak

For a city founded by religious missionaries, "Sin City" is certainly an ironic nickname. In truth, its origins trace back to the construction of the nearby Hoover Dam in the 1930s. Thousands of workers flocked to the city in search of lodging and—presumably—entertainment. This led to the rapid rise of casinos and a thriving underground alcohol industry that—during Prohibition—was as profitable as it was illegal.

11

The Windy City: Long-winded speeches

Image: Kristina Paparo

While many assume it refers to Chicago’s weather, the nickname was actually coined by journalists mocking the boastful speeches of local politicians as they aggressively promoted the city as the ideal location for the World’s Fair. The term was meant to highlight the "hot air" of their rhetoric rather than the city's literal windiness.

12

The Mile High City: A matter of altitude

Image: Bill Griepenstroh

Denver sits exactly 5,280 feet — one mile — above sea level , earning its nickname, the "Mile High City," quite literally. Its natural elevation, combined with stunning Rocky Mountain views, makes it truly unique. Even more interesting, Denver’s altitude leads to some unusual effects: golf balls can travel up to 10% farther than at sea level, and alcohol tends to hit harder since high altitudes reduce the body's ability to process it efficiently.

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.