On Sept. 11, 2001, terrorist attacks on America altered the world's political and military landscape. How much do you really know about the history of these atrocities?
He hated the United States' support of Israel and wanted to make Americans suffer. Mohammed claimed he planned the attacks "from A to Z."
He also wanted to strike targets on both the East and West coasts. But bin Laden convinced him that 10 planes was too risky.
The impact's severity greatly affected the structure. After only about 80 minutes, the tower fell.
Missiles need explosives to be effective. Cross-country flights load up on far more fuel than those making shorter trips.
They were all of Middle Eastern descent and determined to carry out their plan. All 19 died.
It was the worst death toll ever for an attack on American soil. In New York alone, the count was 2,751.
Turns out, the evidence was greatly exaggerated or even fabricated. There were no weapons of mass destruction to be found.
The first tower that was struck hadn't even collapsed yet, but by 9:45 a.m. the FAA wanted to make sure no more planes were hijacked.
It became a major motion picture. Flight 93 passengers heard about the other planes via cell phones and decided to take matters into their own hands.
Shanksville is just a small town. It will feature a national memorial honoring those who suffered on 9/11.
The plane was well under its 182-person capacity that morning, with only 33 people on board. Seven crew members also died.
Initially, the plane was headed toward the U.S. Capitol, although the exact target is uncertain.
America had the world's sympathies on its side, greasing the rails for a quick invasion of Afghanistan after less than a month.
In true democratic fashion, the passengers took a vote. They foiled the terrorists' plans but lost their own lives in the process.
They critically injured passengers and crew members to frighten other people on board, but all they used were small knives.
He repeatedly denied his involvement, but the evidence indicated otherwise. After three years, bin Laden admitted helping with the 9/11 plot.
Bin Laden's courier was justifiably careful not to reveal his leader's location, but after four years, the CIA found al-Qaida's figurehead.
About 7,000 gallons of fuel were on board, enough to cause a huge fireball as the plane crashed.
The city is also where many Pakistani military forces are based. Abbottabad featured a large compound where bin Laden supposedly hid for years.
The mission was complicated by a malfunctioning helicopter, but the SEALs still completed the job in about 40 minutes.