1

A renovation project saved thousands of lives on 9/11

On September 11, 2001, American Airlines Flight 77 struck the Pentagon at 9:37 a.m., killing 189 people. Few people know this part: the death toll could have been much higher. But there was a renovation project underway at the time of the attacks.

The Pentagon’s five-sided structure is divided into five "wedges," and workers had been renovating them one at a time. Flight 77 struck the wedge that had just been completed. Of the 4,500 people who normally worked in that section, only about 800 had moved back in. Without the reinforced construction and the incomplete occupancy, experts believe the casualties would have been catastrophically higher.

2

The Cold War and the hot dog stand

In the middle of the Pentagon’s five-acre center courtyard once stood a modest hot dog stand. According to a Cold War legend (one still retold by official Pentagon tour guides on every public tour), between the 60s and the 80s, Soviet satellite images tracked large groups of high-ranking military officials converging on that small building at the same time every day.

Soviet intelligence reportedly concluded the structure must be the entrance to some underground bunker in America. In reality, all it did was sell lunch. In 2006, the original stand was torn down, and a sandwich shop was built in its place.

3

Its construction began on September 11th, exactly 60 years before the attack

Builders broke ground on the Pentagon on September 11, 1941. That was exactly 60 years to the day before the September 11, 2001, terrorist attacks that would strike the same building.

Construction had been ordered by Army Brigadier General Brehon Somervell, who wanted a permanent headquarters for the Defense Department to replace its then-17 scattered offices across Washington, D.C.

The project was extraordinarily ambitious: plans called for the world’s largest office building to be completed in just 16 months. In the end, the conception, design, and construction of the entire Pentagon building took a total of 15 months.

4

The same person oversaw its construction and the Manhattan Project

Colonel Leslie Groves of the Army Corps of Engineers took charge of Pentagon construction in August 1941. He worked six days a week and drove his team relentlessly, at one point employing more than 15,000 workers around the clock.

When the Pentagon was finished in January 1943, Groves was assigned to lead the Manhattan Project, America’s secret program to build the atomic bomb . His deputy, Captain Robert Furman, followed him into the Manhattan Project as chief of foreign intelligence. Together, the men who built the world’s largest office building went on to produce the weapon that ended World War II.

5

Why is it shaped like that?

The Pentagon’s iconic five-sided shape was the consequence of a geographic accident. The original site selected for the building, near Arlington Cemetery, **happened to be bordered on five sides by roads. **Architects designed the structure to fit those boundaries, producing a pentagonal floor plan. Then President Franklin D. Roosevelt intervened: worried the massive building would obstruct the view of Washington, D.C. from Arlington, he ordered the site moved to its current location along the Potomac River. But the five-sided design had already been drawn up, and nobody changed it.

6

It was the first desegregated building in Virginia

When the Pentagon was designed in 1941, segregation was the law in Virginia. Original plans called for doubled bathroom facilities: separate ones for Black and white employees, as required by Virginia statute. But President Roosevelt had signed Executive Order 8802 in June 1941, prohibiting racial discrimination in federal employment and government contracting.

As a federal building, the Pentagon was exempt from Virginia law. It became the only building in the state where segregation was not enforced. A fully desegregated federal workplace that opened in 1943. The doubled bathrooms were built anyway, as the plans were too far along to revise, but were never used as separately designated spaces.

7

Its construction was surprisingly frugal and incredibly fast

Ground broke on September 11, 1941, and construction finished on January 15, 1943, just 16 months later. More than 15,000 workers were on site around the clock. Wartime office shortages were so severe that employees moved into completed wings before the rest of the building was finished. Steel was too scarce to use extensively, so builders relied almost entirely on reinforced concrete. The 689,000 tons of sand and gravel required came directly from the nearby Potomac River, cutting transportation costs. The project was budgeted at $35 million, but the final bill was $63 million, which would translate to over $900 million in today’s dollars.

8

You can walk between its farthest points in only 7 minutes

The Pentagon is the world’s largest low-rise office building: 6.5 million square feet of space, which is three times the total floor area of the Empire State Building. Each of its five outer walls is 921 feet long. It has 7,754 windows and 17.5 miles of corridors. Approximately 26,000 military and civilian employees report for work there every day.

Despite that scale, the building’s concentric ring design is so efficient that it takes only about seven minutes to walk between its two farthest points.

9

The man who secretly lived inside its walls

During construction, Colonel Groves drove his deputy, Captain Robert Furman, so relentlessly that Furman rarely left the building. To cope, Furman had contractors build him a small, windowless apartment hidden inside the walls of the Army’s Ordnance Division. In this private room, he could sleep and shower without leaving the premises.

When construction ended and personnel dispersed, knowledge of the hidden room was never passed on to building management. Months later, when Furman returned to Washington on Manhattan Project intelligence business, he found the apartment undiscovered and exactly as he’d left it.

For over a year, he would slip back to the Pentagon, pop open a wall panel, spend the night, and emerge in the morning with his suitcase. He was finally caught in 1943 and forced to surrender the keys. It was never disclosed whether the secret apartment was maintained or eventually absorbed back into the official floor plans.

10

It houses over 30 restaurants, including everyone's favorite chains

The Pentagon feeds roughly 26,000 people a day, and its dining options read less like a military headquarters and more like a mall food court. The main Concourse Food Court, which opened in September 2009 and seats 875 people, is the largest of several dining areas.

Confirmed chains currently inside the building include McDonald’s, Five Guys, Subway, Popeyes, Starbucks (multiple locations), Dunkin’ (two locations), Panera Bread, Taco Bell, Panda Express, Baskin-Robbins, Potbelly, Jamba Juice, and Moe’s Southwest Grill, among others. The building also houses a CVS pharmacy, a florist, a jeweler, and a dry cleaner. In the summer of 2024, Potbelly became the first restaurant to open in the center courtyard. Yes, the very spot where the legendary Cold War hot dog stand once stood.

1

Measuring

This is a difference most Americans are aware of: most countries use the metric system rather than U.S. customary units, and most use Celsius instead of Fahrenheit. Countries such as the UK and Canada still use some imperial units in everyday life, but they mainly use the metric system. Another measure that confuses foreigners is the particular way ingredients are measured in American recipes, which often use cups, tablespoons, and teaspoons rather than measurements by weight.

Fun fact: The only other countries that use the Imperial system officially are Liberia and Myanmar.

2

Sales tax

Do you find having to calculate sales taxes annoying? That’s a unique American experience. In the majority of the world, the price you see is the price you pay , because it has the sales tax already added.

Why is it different in America? Sales taxes vary across states , so retailers find it easier to showcase the base price and then calculate the total at checkout.

3

Cutlery use

Many Americans abroad are surprised by the realization that not everyone uses a knife and fork in the same way they do . In fact, no one else does. While most Americans have learned the American style —also called the zig-zag or fork switching method— that involves using the fork in the left hand for cutting and then changing it to the right to pick up the food, European and Latin American countries don’t do this . It might seem like a small difference, but it completely changes the way you eat.

4

Iced drinks

Do other countries not have ice? They do, but they don’t necessarily assume everyone will want it. While serving water and other beverages with ice is customary in America, in many other countries, you need to request it —even during the hottest of summers.

But even if you get ice, many times you will need to specify the amount : the same drink that would be filled with ice cubes in America might come to you with just two or three cubes elsewhere.

5

Date formatting

The U.S. is not completely alone on this one, but there’s a difference big enough to be worth mentioning. The standardized way of recording the date in America is month-day-year , a convention also followed by some Caribbean and Asian countries. But in the rest of the Western world, the conventional format is day-month-year , which can lead to confusion for Americans. In most Asian countries , the most commonly used format is year-month-day .

6

The word ‘American’

In the English language, ‘American’ is the only way to refer to people with U.S. citizenship . Other words, such as ‘Usian’ or ‘Unitedstatian’ have been proposed, but never stuck. This is why many Americans are surprised when other countries —Latin American countries in particular— use ‘American’ for anyone in the American continent , or continents, another big difference. In most European and Latin American countries, there is a different word for U.S. citizens, such as the Spanish ‘estadounidense’ or the Portuguese ‘estadunidense’ .

7

Moving out at 18 years old

This one is not so black and white, but more like a general tendency. Compared with most of Europe, Latin America, and Asia, Americans give serious consideration to the possibility of moving out after high school. Not everyone does, and not everyone can afford it, but it's fairly common.

In other countries, young adults generally move out if their job or education requires it , but they tend to stay at home a few more years if they can.

8

Driving a car as a teenager

America is quite car-centric , especially if you live outside of the big cities. While not everyone can afford to have a personal car —even a second-hand one—, it is common for 16 and 17-year-olds to legally drive their parents’ car, or save for their own.

In the rest of the world, the chances of high schoolers driving themselves to school are much lower, as most countries don’t allow underage kids to get a driving license .

9

Solo cups

Do plastic cups exist outside of the U.S.? They do, but they are not as iconic or as widely used as Solo cups, introduced in the 1970s as a disposable but sturdy cup for parties and events. Many foreigners visiting America are surprised when they realize that solo cups are a real thing , and not something that just happens in movies.

10

Filing taxes

Taxes in the U.S. are not that different from taxes in other countries, except for how they are filed . During tax filing season, thousands of Americans direct their efforts to ensure they have properly reported their income and that their return will match the IRS’s data.

In other parts of the world, however, the one responsible for calculating and filing taxes is the government , while citizens merely corroborate that everything is in order.

1

Titanic (1997)

James Cameron’s Oscar-winning blockbuster frames the tragic 1912 sinking around the fictional romance of Jack (Leonardo DiCaprio) and Rose (Kate Winslet), while depicting real-life First Officer William Murdoch (Ewan Stewart) accepting bribes, shooting passengers, and taking his own life.

When the film premiered in 1997, the portrayal of Murdoch caused significant outrage. Survivor accounts prove the First Officer acted heroically, working tirelessly to launch lifeboats and saving hundreds of lives before dying in the freezing Atlantic. Additionally, third-class passengers were not locked below deck by armed guards as portrayed in the movie. _Titanic_’s producers eventually traveled to Murdoch’s hometown of Dalbeattie, Scotland, to issue an official apology to his descendants.

2

Braveheart (1995)

Mel Gibson’s epic depicts William Wallace leading a 13th-century Scottish rebellion against English rule, wearing belted plaid kilts and seducing Isabella of France (Sophie Marceau).

Many details in the film are inaccurate. For example, Scots didn’t wear kilts until the 16th century, nearly 300 years after Wallace’s death. Furthermore, Isabella was roughly three years old and living in France during Wallace’s rebellion, making the affair impossible.

3

Pearl Harbor (2001)

In Michael Bay’s romantic war drama, Rafe McCawley (Ben Affleck) and Danny Walker (Josh Hartnett) face Japanese Zero fighters, join the British Eagle Squadrons before the U.S. enters World War II, and witness direct attacks on civilian medical units.

In real life, U.S. Army Air Corps officers like Rafe were legally forbidden from joining Britain’s Eagle Squadrons while the United States remained neutral. During the December 7, 1941 raid, the Japanese prioritized attacking battleships, airfields, and fuel depots, and they didn’t target field hospitals or civilian nurses as depicted in the film. Also, President Franklin D. Roosevelt’s (Jon Voight) dramatic moment where he stands up out of his wheelchair to inspire his cabinet never occurred.

4

Pocahontas (1995)

Disney’s animated film famously tells the story of a young Powhatan woman named Pocahontas who falls in love with the English explorer Captain John Smith, helping to promote peace between their two cultures.

When John Smith arrived in Virginia in 1607, Pocahontas (whose actual name was Matoaka) was only around 10 to 12 years old, while Smith was a 27-year-old soldier, and there was no romantic relationship between them. Smith’s famous account of Pocahontas saving his life by placing her head over his is debated by modern historians, who view it as either a misunderstanding of a tribal adoption ceremony or an invention in his later writings. Pocahontas was later captured by English settlers, held for ransom, converted to Christianity, and married tobacco merchant John Rolfe before dying in England at age 21.

5

Gladiator (2000)

The plot of Gladiator revolves around Maximus Decimus Meridius (Russell Crowe) when he witnesses Emperor Marcus Aurelius (Richard Harris) being smothered to death by his son Commodus (Joaquin Phoenix), who seizes the throne, rules as a tyrant, and is later killed in gladiatorial combat inside the Colosseum.

In reality, Marcus Aurelius was never murdered by his son; he died of an infectious illness in 180 AD. Commodus had already been co-emperor for three years before his father’s death. Far from an usurpation, Commodus ruled Rome for 12 years. He didn’t die in the sands of the arena either: he was strangled in his bath by his wrestling partner, Narcissus, during a palace coup. Moreover, Roman gladiatorial fights were officiated sporting events, not chaotic deathmatches.

6

Shakespeare in Love (1998)

A young William Shakespeare (Joseph Fiennes) suffers from writer’s block until he meets aristocrat Viola de Lesseps (Gwyneth Paltrow), who disguises herself as a man to act on stage, inspiring him to write Romeo and Juliet .

Almost the entire narrative is historical fiction. Viola de Lesseps never existed, and Romeo and Juliet wasn’t inspired by a secret love affair. Women were indeed banned from performing on the Elizabethan stage, but monarchs like Queen Elizabeth I never attended public theaters, which were considered unsafe and unhygienic. Instead, theater companies were hired to give private performances at court. Furthermore, by the mid-1590s, Shakespeare was already married to Anne Hathaway and was an established playwright in London, not an impoverished unknown struggling for ideas.

7

A Beautiful Mind (2001)

Ron Howard’s biopic presents John Nash (Russell Crowe) battling schizophrenia. In the film, the Nobel Laureate mathematician has vivid visual hallucinations of a college roommate, a young girl, and a secret government handler.

It is true that John Nash lived with paranoid schizophrenia, but his hallucinations were auditory and delusional (he heard voices and believed extraterrestrial beings were communicating through newsprint). Filmmakers acknowledged altering his symptoms because visual figures were easier to convey on screen. The film also sugarcoated Nash’s personal life, omitting his first child born out of wedlock, his divorce from his wife Alicia, and his intimate relationships with other men.

8

JFK (1991)

Director Oliver Stone follows New Orleans District Attorney Jim Garrison (Kevin Costner) as he uncovers a conspiracy behind President John F. Kennedy’s 1963 assassination involving the CIA, FBI, military leaders, and Vice President Lyndon B. Johnson.

Historians criticize JFK for presenting discredited conspiracy theories as historical facts. Key characters in the film (such as Donald Sutherland’s "Mr. X") were complete fabrications. Garrison’s actual prosecution of businessman Clay Shaw was based on dubious testimony and resulted in Shaw’s acquittal in under an hour. The narrative of a multi-agency coup remains unsupported by official evidence, yet the film prompted the release of classified records under the JFK Records Act.

9

The Sound of Music (1965)

In the iconic film The Sound of Music , governess Maria (Julie Andrews) teaches naval Captain von Trapp’s seven children to sing and helps the family escape the 1938 Nazi annexation of Austria by hiking over the Alps into Switzerland.

Had the von Trapp hiked over the mountains behind their house in Salzburg, they would have walked straight into Nazi Germany near Hitler’s mountain retreat at Berchtesgaden. In real life, the family walked to their local train station and boarded a train to Italy before emigrating to the United States. Also, the personalities were reversed: the real Captain von Trapp was warm and musical, whereas Maria was strict. What’s more, the couple had already been married for over ten years before leaving Austria.

10

Saving Private Ryan (1998)

The opening D-Day landing sequence in Saving Private Ryan is praised by military veterans for its technical realism, but the film’s core premise is fictional. Following the invasion at Omaha Beach, Captain Miller (Tom Hanks) leads a U.S. Army Ranger squad into enemy territory in Normandy to find Private James Ryan (Matt Damon), whose three brothers were killed in action.

The plot is loosely inspired by the real-life Niland brothers, but the U.S. military never dispatched an entire squad on a dedicated search mission through enemy lines to extract a single private. Additionally, the final battle in the fictional town of Ramelle overstates the ability of infantry small arms against heavy German armor, which in reality was neutralized by artillery and tactical air strikes.