Experience 9/11, the deadliest terrorist attack on American soil, as it happened.

One Day in America series reveals the full timeline and human toll of 9/11

This National Geographic episode reconstructs the events of 9/11—highlighting the Pentagon attack, Flight 93 hijacking, South Tower collapse, and rescue efforts—offering a detailed, chronological account of how the day unfolded.

AP Photos: 20 images documenting the enormity of 9/11

The Associated Press shares 20 photographers’ frames from Sept. 11, 2001, when hijackers crashed commercial planes into New York’s World Trade Center, the Pentagon and a Pennsylvania field.

9/11 was the first global disaster watched in real time across the world

As the first plane struck at 8:46 a.m. ET, CNN's live feed broadcast images worldwide within minutes. An estimated 2 billion people watched the collapse of the Twin Towers live.

One hijacked plane struck the Pentagon on 9/11, killing 125 people inside

American Airlines Flight 77 crashed into the Pentagon's west side, destroying a section of the building and killing all 59 on board, along with 125 military and civilian personnel, making it the deadliest attack on the US military headquarters.

View artifacts at the Smithsonian that tell the story of 9/11.

An in-depth account of the image of 'The Falling Man' whose final seconds capture the visceral horrors of 9/11

Do you remember the photograph above? In the US, people have taken pains to banish it from the record of Sept. 11, 2001. Here's a detailed account of the story behind it, the search for the man pictured in it, and its impact on those who lived through the tragic day.

See intact objects found in the wreckage of Flight 93, which crashed in Pennsylvania after its 40 passengers and crew stormed the cockpit, stopping the hijackers from reaching their likely target, the US Capitol Building.

President Bush addressed the nation on 9/11 from the Oval Office, watched by an estimated 80 million people.

How NATO responded to 9/11

The collective defense clause of the NATO constitution has only been invoked one time: after the 9/11 terrorist attacks against the United States. This video explores the immediate actions NATO took to respond to the attacks to support the United States. These firsthand clips from 2001 give a sense of the magnitude of the moment and the difficult decisions facing NATO leaders at the time.

9/11 permanently changed air travel security in the US with the creation of the Transportation Security Administration.

Flight 93 passengers fought back and prevented a fourth target

United Airlines Flight 93 was hijacked en route to Washington, DC. Passengers learned of the other attacks and stormed the cockpit. The plane crashed in Pennsylvania, likely preventing a strike on the US Capitol.

9/11 reshaped US foreign and military policy for decades, shifting focus to non-state actors and the Middle East.

Americans showed an unprecedented surge of patriotism after 9/11

In the weeks following 9/11, 79% of US adults reported displaying the American flag, and a year later, 62% said they "often felt patriotic" due to the attacks.

A firsthand account from the AP photographer who captured 'The Falling Man'

On 9/11, AP photographer Richard Drew made one of the most indelible — and harrowing — images of the 21st century. Here's his account of the photo he captured.

Explore personal 9/11 oral histories from survivors, first responders, and families

The 9/11 Memorial Museum's archive includes over 3,500 firsthand interviews—spanning survivors, first responders, family members, and residents—offering rare, deeply personal perspectives on the tragedy and its aftermath.

The 9/11 plane crashes, which resulted in the collapse of the Twin Towers, created toxic dust that included materials including asbestos, silica, metals, concrete, and glass.

al-Qaida targeted multiple US interests in attacks before 9/11

Before 9/11, al-Qaeda carried out several deadly attacks on US targets—including the 1998 embassy bombings in Kenya and Tanzania and the 2000 bombing of the USS Cole—killing hundreds of people.

President George W. Bush learned of the 9/11 attacks while visiting a classroom.

What 9/11 did to one family: the heartbreaking story of Bobby McIlvaine

Grief, conspiracy theories, and a family's search for meaning in the two decades since the attacks. On Sept. 11, 2001, Bobby McIlvaine was killed, along with nearly 3,000 other Americans. In the years since, his parents and brother have searched for...

343 members of the Fire Department of New York died on 9/11 trying to rescue people from the World Trade Center.

US intelligence warned in multiple reports of al-Qaida's plans to strike before 9/11.

The US launched the Global War on Terror after 9/11

In the wake of 9/11, the US declared a Global War on Terror—initiating military operations in Afghanistan and Iraq, expanding surveillance, and forming international coalitions to combat terrorism and disrupt extremist networks worldwide.

The toxic dust from 9/11 sites still claims lives decades later

In the years after 9/11, nearly 17,000 first responders enrolled in health programs have reported cancers and respiratory diseases linked to Ground Zero exposure. More have died from related illnesses than were killed on the day itself.

Watch Springsteen open a somber 9/11 tribute

“America: A Tribute to Heroes” was a fundraising telethon on Sept. 21, 2001, and simulcast across the four major networks. Springsteen opened the program with “My City of Ruins,” a song originally written about Asbury Park that took on new significance after the Sept. 11 terrorist attacks.

After the 9/11 terrorist attacks, US radio stations created a list of 150 banned songs they feared would be insensitive.

Double rainbow appears in New York City on 9/11 anniversary

On the evening of the 9/11 anniversary in 2023, a double rainbow appeared after a thunderstorm across Manhattan, providing inspiration 22 years after the terrorist attacks there. Peruse several amateur images taken of the phenomenon which were shared on social media, including shots from up high in condos overlooking Central Park and from across the Hudson River in New Jersey.

See how newspapers broke the news of the attack around the world

This collection showcases front pages from cities around the globe reacting to Pearl Harbor in real-time—capturing the shock, fear and uncertainty as the US entered World War II.

Coverage of the 9/11 terrorist attacks helped shape Wikipedia's editorial policies

Launched nine months earlier, the site was featured on Yahoo's news page, attracting traffic from information seekers as dozens of new editors created hundreds of articles, including memorials, conspiracy theories, and donation and volunteer pages. Discussions between editors would begin establishing rules for handling breaking news events.

The children of parents who died on 9/11 share their stories in remembrance

Many children of 9/11 victims were too young to remember their parents who died. They’ve grown up living with the tension between having a personal connection to the day but few, if any memories. Read some of their stories.

Watch New York City's Tribute in Light to the victims of 9/11

Tribute in Light is a commemorative public art installation first presented six months after 9/11 and then every year thereafter, from dusk to dawn, on the night of September 11. It has become an iconic symbol that both honors those killed and...

After the 9/11 terrorist attacks in New York City’s Financial District in 2001, many banks decided to relocate

Much has been said about why today’s top banks are typically no longer headquartered on Wall Street itself. The terrorist attacks in New York City’s Financial District on Sept. 11, 2001, are one reason many banks decided to relocate.

Watch Jon Stewart's unifying opening monologue during his first show back after the 9/11 terrorist attacks.

9/11 first responders still deal with significant mental and physical impairments.

The US and allies invaded Iraq based on flawed intelligence about potential weapons of mass destruction.

President Bush threw the first pitch at the World Series in New York City less than two months after 9/11.

Hear Pearl Harbor survivors reflect on the attack 80 years later

This anniversary video features some of the last living witnesses to the Pearl Harbor attack. Their firsthand memories—shared eight decades later—offer a rare perspective on the day that changed their lives and the world.

They lost loved ones on 9/11. Hear the heart-wrenching voicemails they'd leave for them.

NPR set up an old phone booth in Brooklyn Bridge Park — across the river from the new World Trade Center — and invited people to leave a voicemail for someone they lost that day.

A writer's reflection on 'The Falling Man' - the man who fell from the World Trade Center

In an excerpt from his ‘Press Box’ interview with Bryan Curtis, writer Tom Junod discusses his Esquire story about the image of a man who fell or jumped from the North Tower on Sept. 11, 2001.

The War on Terror used controversial tactics like torture and secret prisons

As part of its post-9/11 strategy, the US employed enhanced interrogation, extraordinary rendition, and secret CIA black sites—practices widely criticized as torture and violations of international law and human rights.

Osama bin Laden declared jihad—a call for armed struggle framed as a religious duty—against the US in 1996.

After the 9/11 terrorist attacks, The Onion stuck with satire, defying what some were predicting was 'the death of irony.'

Hear firsthand stories from Americans who lived through the 1918 flu pandemic

This video shares personal accounts from survivors of the 1918 influenza epidemic, capturing memories of sickness, loss, and resilience. Their voices offer a glimpse into how ordinary people experienced one of history’s deadliest pandemics.

After the World Trade Center attacks, all bridges and tunnels were closed, and civilian ships helped evacuate roughly half a million people from Manhattan.

A NYC church near ground zero became a 24/7 relief center for more than eight months without closing after the attacks, providing meals, beds, and other support to relief workers.

View the ten deadliest tornadoes in US history.

The PATRIOT Act expanded government surveillance after 9/11

Signed into law weeks after the attacks, the PATRIOT Act granted federal agencies sweeping powers to monitor communications, access records, and conduct surveillance—sparking ongoing debates over privacy, civil liberties, and national security.

The 'Miracle on the Hudson' showed heroism in the air and changed social media forever

On Jan. 15, 2009, US Airways Flight 1549 lost both engines after hitting birds and was safely landed in the Hudson River. The event was a turning point for Twitter, as a photo and a tweet quickly spread—marking Twitter's rise as a real-time news source.

Watch the Challenger disaster unfold in real time

On January 28, 1986, Space Shuttle Challenger broke apart just 73 seconds after liftoff. This live CNN broadcast captures the tragedy as it happened—second by second—showing the shock and confusion of one of NASA's darkest moments.

Take a multimedia journey through the thirteen days that nearly ended the world

In October 1962, the Cuban Missile Crisis brought the US and Soviet Union to the brink of nuclear war. This interactive archive from the JFK Library reconstructs those tense days through documents, photos, and secretly recorded conversations from the Kennedy White House.

Welcome to Gander, a tiny town of around 10,000 people in Newfoundland, which took in nearly 7,000 passengers for days after the 9/11 attacks grounded all air travel in the US.