1

Pizza (Italy)

Image: Kelvin T

Let us get the obvious out of the way first. Pizza and America were a love at first bite. This delicious food was brought to America by Italian immigrants in the late 19th century. In 1905, Gennaro Lombardi applied to the New York City government for the first license to make and sell pizza in this country, at his grocery store on Spring Street in what was then a thriving Italian-American neighborhood.

These days, from New York to Chicago to California, Americans consume more than three billion pizzas a year.

2

Sushi (Japan)

Image: Vinicius Benedit

A Japanese dish that has been a hit for a couple of decades now is, of course, sushi . This elaborate meal arrived in the U.S. somewhere between the 1950s and 1960s, and it was popularized with the opening of Kawafuku Restaurant in Los Angeles’ Little Tokyo.

Sushi restaurants began to open outside the confines of Little Tokyo, and the cuisine gained popularity, especially with Hollywood celebrities. Cosmopolitan cities like New York and Chicago soon followed suit with sushi restaurants of their own, and by the late 1980s, sushi was a full-on craze.

3

Burritos (Mexico)

Image: Kashish Lamba

Being a traditional dish from a neighboring country, it is no wonder that burritos are such a popular food in the United States. These Mexican delicacies first appeared on American restaurant menus at the El Cholo Spanish Cafe in Los Angeles during the 1930s.

North of the border, the burrito evolved to include a wider variety of fillings, such as rice, cheese, sour cream, and salsa, and it became a popular and customizable fast-food item.

4

General Tso’s Chicken (China)

Image: Sunday 133

As ubiquitous as Chinese food is in America, General Tso’s Chicken is an ubiquitous item in its menus. The dish as most Americans know it today was invented by Peng Chang-kuei, a chef from the Hunan province.

During the 1950s, Taiwan became a haven for classical Chinese cuisine. Peng opened a restaurant in the capital of Taipei and for years served food inspired by traditional Hunanese cooking, including the now-famous General Tso’s Chicken.

5

Gyros (Greece)

Image: irws

A beloved street food, Greek gyros have always been popular in the Mediterranean countries but gained popularity in the United States in the early 20th century when Greek immigrants began emigrating to the U.S. shortly after World War II.

A traditional Greek gyro is a dish made from thinly sliced meat baked on a vertical spit and served with a tangy sauce called tzatziki. It is most commonly made with lamb, but beef and pork are also available. In Greece, gyros are a popular meal choice.

6

Pad Thai (Thailand)

Image: Alyssa Kowalski

Pad Thai was born in Thailand during the time of World War II. The Prime Minister made this popular dish at the time because he was concerned about the country’s high rice consumption. So, to lower rice consumption, he encouraged citizens to eat more noodles—which Chinese merchants were selling at the time. The combination of Chinese rice noodles and native Thai flavors used for this dish eventually paved the way to creating what we call Pad Thai these days.

However, the delicious Pad Thai you might be familiar with from Thai restaurants in the U.S. is not a traditional Thai dish. Instead, it’s a nod to the American palate, introduced to the United States by Chinese immigrants who used "pad" as a catch-all term for any stir-fried noodle dish.

7

Coq Au Vin (France)

Image: Katherine Chase

Always associated with high cuisine, the iconic coq au vin was featured by Julia Child in her breakthrough 1961 cookbook Mastering the Art of French Cooking. And she must have liked it because it was a recurrent dish on her PBS cooking show The French Chef.

This media exposure helped increase the visibility and popularity of the dish in the United States, and coq au vin was seen as one of Child’s signature dishes.

8

Ceviche (Peru)

Image: Pirata Studio Film

Ceviche is a Peruvian seafood dish that made its way onto American plates in the 1980s when Caribbean flavors came from Florida. In its classic form iced cubes of raw fish, marinated in a lemon or lime juice mixture, react with the citrus juices to cure the fish protein and cause it to become opaque and firm while absorbing flavor.

The essential ingredients of any ceviche are raw fish, citrus juices, and seasonings. So, it could be said that, while not a deal-breaker, being a fish enthusiast will definitely help you enjoy this delicious meal.

9

K-BBQ (Korea)

Image: Daniel Lee

Korean BBQ as we know it today began to develop in the 1940s and 1950s, following the Korean War when the US military introduced new grilling techniques and equipment to Korean food culture. In the following decades, Korean BBQ spread throughout Korea and eventually around the world.

During the past decades, Korean BBQ went from being something consumed by Korean immigrants and their descendants exclusively to something that can be found and is beloved in nearly all American cities.

10

Ropa Vieja (Spain)

Image: Medamedia

A strange name for such a tasty meal, Ropa Vieja is Spanish for "old clothes". The origin of the name comes from the legend of a poor man who shredded his clothes to feed his family, magically transforming the rags into a slice of beef and vegetables. Legends aside, this is a delicious meal that became famous in Cuba but can be traced back to Spain.

Cooking the meat is a labor-intensive process, but it’s very rewarding when done right. The dish is made the night before so the juices really seep into the beef, giving it an amazing flavor and texture. Ropa Vieja made its way through Florida and into the country.

1

Money Materials

Image: Jorge Salvador

We call them paper bills, but do they undergo the same process as any other paper? Naturally, they don’t. U.S. bills are mainly made of two materials: 75% of their composition is cotton and the 25% left is linen. Besides, they have randomly disbursed red and blue security fibers embedded in the paper.

This special blend is made by only one company in America and that is Crane & Co . The company, based in Massachusetts patented this special blend and it has been the sole provider of paper for currency since 1879.

2

Origin of the U.S. dollar symbol

Image: Paris Bilal

The dollar sign is a matter of debate. One line or two across a capital S, the symbol is today a worldwide sign for money, but where does it come from?

Even if there are several theories as to where the U.S. dollar symbol comes from, all of them agree that it was derived from the Spanish peso . When the time came, and the new nation needed its own currency, the basis was that of the Spanish coinage, which was the most common currency in the colonies before the country’s independence.

The adoption of the sign was made official in 1785, and today, the United States is not the only country that uses this symbol, Canada, Australia, and New Zealand do too!

3

Who appears on the bills?

Image: AR

Having your face forever stamped on the little piece of paper that rules the world should be a milestone in your career, right? However, there were certain rules as to who qualifies to be granted this honor .

Probably, the most surprising, yet the most logical one is that no living person can be portrayed in American currency. Since the Founding Fathers considered it unpatriotic to be portrayed while alive, this was first a tradition and then made official in an Act of Congress in 1866 .

However, contrary to popular belief, this honor is not only reserved for presidents! Anyone who contributes to the nation can be portrayed.

4

Folding Papers

Image: Emilio Takas

Bills come and go all the time. We take them out of our pockets and put them in our purses only to take them out again a few hours later and give them to the shop assistant. For a life that busy, we can only hope the paper is tough enough , right?

Well, as a matter of fact, it is. Compared to regular paper, which can only be folded 400 times before it breaks, money paper can be folded up to 8,000 times before it breaks .

It's not that you’re going to try it out and see, but you can rest assured: Fold your bills away, they can handle it!

5

Damaged Goods

Image: Jp Valery

Even if they can be folded that many times, the life of bills is limited, not to mention accidents happen. Who hasn’t sent a bill to the washing machine by chance?

So, what happens when a bill is damaged? Well, at least 50% of it has to be clearly identifiable for the bank to replace it , otherwise, you’ll just lose your money. You don’t feel like folding them much now, right?

On the other hand, and mainly due to time damage, at least 70% of the new bills are used to replace old bills . These bills, once taken out of circulation are shredded and sent to companies that can recycle them!

6

Security Features

Image: Colin Watts

Counterfeiting has been a problem ever since paper money was created and statistics about which countries counterfeited most of the money are simply shocking. But we won’t get into that.

What we will say is that thanks to technological advancement, the U.S. bill is getting harder and harder to counterfeit. In modern bills, there are at least six security features which are: UV security ribbon, raised printing, microprinting, 3D security ribbon, color-shifting ink, and traditional watermarks. Do you pay attention to them?

7

U.S. Coins

Image: Kenny Eliason

Coin production in America is in charge of the U.S. Mint and there are four production facilities across the country. They are located in Philadelphia, Denver, San Francisco, and West Point.

It is estimated that every year the Mint produces about 16 trillion coins which are valued at over $1.09 billion dollars. What is truly impressive is that Americans throw away an estimated 62 million dollars worth of coins every day!

They may not be worth much alone but don’t throw them away, all of them together can make you rich!

8

Green Ink

Image: maria pagan

Have you ever wondered why the U.S. dollar bills were green? It is not about design or aesthetics, even if we think they look pretty.

The decision to use green ink was a matter of security, in order to prevent counterfeiting. Back then, black and white ink made it easier to create photographic fakes. For that reason, green was the color of choice, and, when paper money was standardized in 1929, it had great acceptance due to the positive connotations of the color . Do you like it?

9

Andrew Jackson’s Take on Paper Money

Image: Elsa Olofsson

Every denomination has an important figure stamped on the front. In the case of the 20-dollar bill, Andrew Jackson was the chosen one.

Jackson was the seventh president of the United States and, even if it is not a rule that only presidents can be portrayed, his contributions gained him this honor.

Ironically, Jackson was not in favor of using paper money. For him, only gold and silver coins should have remained legal tender. After learning this, one can only assume he wouldn’t be so happy to be the face of the 20-dollar bill, right?

10

Facelifts and redesigns

Image: Kenny Eliason

One of the ways of keeping paper money safe and hard to counterfeit is by giving the bills new designs.

New faces were expected to appear in future bills, but, in the meantime, the changes always had to do with the proportions of the elements within each denomination. Bigger faces, rearrangement of the signatures, stuff like that.

Now, these changes and facelifts haven’t reached all the bills. 1-dollar bills haven’t been changed or redesigned ever since 1929. Why is that? Because it is not worth the trouble for criminals to counterfeit. One dollar won’t take them too far!

1

Alaska is so big, it could fit Texas inside twice

Image: Paxson Woelber

Sure, everything’s bigger in Texas… but where does that leave Alaska? The Last Frontier spans about 663,000 square miles , while the Lone Star State covers roughly 268,000 square miles. So yes, you could comfortably fit Texas inside Alaska twice, and still have room left over for California.

2

You could stack 10 Washington Monuments inside the Grand Canyon’s depth

Image: Sonaal Bangera

At its deepest point, the Grand Canyon plunges more than 6,000 feet. That’s more than a mile of height, to give you an idea. To put that in perspective, the 555-foot-tall Washington Monument could fit inside the canyon roughly ten times from top to bottom.

3

The Statue of Liberty’s sandal is the size of a small car.

Image: A n v e s h

Have you ever paid attention to the Statue of Liberty’s feet? Yes, they are visible, right next to the broken shackles at her base. You can’t stand next to the feet, of course, but if you could, you’d see that each sandaled foot measures about 25 feet long , which is a bit over the length of a Chevy Suburban.

4

The Empire State Building was built faster than a modern kitchen remodel

Image: Kit Suman

Did you know that one of the most famous buildings in the world was pretty much speed-built? Construction took just 410 days , starting in 1930 and finishing in 1931. This rapid progress was possible thanks to prefabricated steel parts and a workforce of roughly 3,400 workers each day. Nowadays, your average kitchen renovation takes 6 months to a year.

5

If the Earth were the size of a basketball, the Moon would be a tennis ball 24 feet away

Image: Anne Nygård

This is a fun way to illustrate the relationship between our planet and its satellite. If Earth were the size of a basketball (about 9.5 inches in diameter), the Moon would be roughly the size of a tennis ball (about 2.5 inches).

But they would be a whopping 24 feet away, about the length of a stretch limousine (or a Statue of Liberty sandal). This scale model helps explain just how far apart and disproportionate they really are!

6

A single cloud can weigh as much as 90 elephants

Image: Volodymyr Dobrovolskyy

Clouds may not look heavy, but these giant beauties are surprisingly massive. Scientists estimate that an average fluffy cumulus cloud contains about 1.1 million pounds of water, which is roughly the weight of 90 adult African elephants .

7

You could fit 7 Yankee Stadiums inside the Mall of America

Image: David Vives

With over 5.6 million square feet, the Mall of America is one of the largest indoor spaces in the country . Imagine trying to meet your friends in just one of its 500+ stores!

The mall also features an indoor amusement park and an aquarium. To give you an idea, Yankee Stadium covers roughly 800,000 square feet. You could fit about seven of them within the Mall of America.

8

A hummingbird flaps its wings faster than a car engine runs

Image: James Wainscoat

Hummingbirds beat their wings between 50 and 80 times per second , roughly eight times faster than the revolutions per second of a typical V8 engine at idle. No wonder they have enough force to seemingly fly in place!

9

Comparing lightning bolts with defibrillator shocks

Image: chutipon Pattanatitinon

The energy in lightning bolts can vary, but it’s not uncommon for them to unleash 5 billion joules . Roughly, a biphasic defibrillator delivers about 200 joules in a single shock. And, to give you an idea, it takes roughly 50,000 joules to toast a single slice of bread.

10

Yellowstone sits on top of a supervolcano the size of Rhode Island

Image: Denys Nevozhai

You might have heard of Yellowstone’s supervolcano and how tourists leave mesmerized by the geysers, hot springs, and wildlife.

But the size of its caldera is even more astonishing: it stretches 20 by 45 miles , covering nearly 1,350 square miles. That’s roughly the same area as Rhode Island, the smallest U.S. state.

11

Niagara Falls could fill an Olympic pool in less than a second

Image: Hadi Yazdi Aznaveh

A standard Olympic-size swimming pool holds about 660,000 gallons. Niagara Falls, however, pours roughly 700,000 gallons of water every second, meaning it could fill a pool in under one second, approximately 0.94 seconds to be exact.

If you were filling the same pool with a standard hose, it could take about 19 days .