9/11 16th Anniversary: 20 Pictures We’ll Never Forget

Today is the 16th anniversary of September 11. On this day nearly a decade-and-a-half ago, Islamist militants carried out 4 coordinated attacks on American soil. Honor their victims today with these photos.

PHOTOS: New Post-9/11 Images of the Pentagon Released by the FBI

WATCH: CNN ‘Cuts’ Clinton Collapse Video & Makes It Look Like She Only Tripped at 9/11 Ceremony

WATCH: Strange Metal Object Falls From Hillary Clinton When Stumbling at 9/11 Ceremony

WATCH: al-Qaeda Appeals to African-Americans to Commit Terrorist Attacks on 9/11 Anniversary

WATCH: Hillary Clinton Stumbles While Leaving 9/11 Ceremony

A video showing Hillary Clinton stumbling before getting swept away in a black van has people wondering about the Democratic Presidential candidate’s health.

WATCH: Original Live Coverage of the 9/11 Terrorist Attacks

WATCH: 9/11 Memorial Ceremony Live Stream 2016

What Time & Channel Is the 9/11 Memorial Ceremony On?

9/11 Flag Found: 5 Fast Facts You Need to Know

9/11 Pentagon Victims: Who Died at the Pentagon on September 11?

On September 11, 2001, 184 people lost their lives in the terrorist attack on the Pentagon. Here’s how you can find out who they were.

WATCH: September 11, 2001 Live News Coverage as It Happened

9/11 Quotes From Survivors, Bush and Family Members of Victims

WATCH: 9/11 World Trade Center Attacks [VIDEOS]

The Twin Towers Before & After September 11th Attacks: Looking Back

9/11 Jumpers: Remembering the Victims of September 11th

September 11: Bible Verses of Peace on 9/11 15th Anniversary

September 11 15th Anniversary: 30 Pictures We’ll Never Forget

EXCLUSIVE: 9/11 Photos from September 11, 2001

Is There an ISIS Terrorist Attack Threat for September 11, 2016?

15 years after 9/11 was committed by al-Qaeda and Osama bin Laden, the United States is now at war with the Islamic State. Is there a credible terrorist threat for the 15th anniversary of September 11?

Bretagne, Last Known 9/11 Rescue Dog: 5 Fast Facts You Need To Know

Paul Salo: 5 Fast Facts You Need to Know

Steve Rannazzisi Lied About 9/11: 5 Fast Facts You Need to Know

WATCH: New ISIS Video From Islamic Cyber Army

#WhereWereYou? Twitter Asks Where People Were on 9/11

Hashtag “Where Were You?” was trending on Twitter this morning on the anniversary of September 11, asking users where they were when they heard the news.

9/11 Anniversary Tribute: 10 Inspirational Memes

On the 14th Anniversary of 9/11 — 50 Photos We’ll Never Forget

Remembering 9/11: Bible Quotes, Verses, & Passages

Bin Laden Death Story a Lie: 5 Fast Facts You Need to Know

September 11 Anniversary: 50 Pictures We’ll Never Forget

Today marks the 13th anniversary of the September 11, 2001, tragedy, when terrorist attacks by al-Qaeda killed nearly 3,000 people in New York City and Washington, D.C. Remember those who died on this day that changed everything.