Date of the attack: 9/11 = 9 + 1 + 1 = 11.
Trade Towers resembled ‘Eleven’.
The World Trade Center was sold 11 weeks before the attack.
110 (11) floors two each trade tower
AA (American Airlines) is numerically 11
American Airlines Flight 11, carrying 81 passengers and 11
September 11th is the 254th day of the year: 2 + 5 + 4 = 11.
After September 11th there are 111 days left to the end of the year.
Twin Towers - standing side by side, looks like the number 11.
The first plane to hit the towers was Flight 11.
State of New York - The 11th State added to the Union.
New York was the 11th state to endorse the Constitution.
New York City - 11 Letters.
The Pentagon - 11 Letters
Afghanistan - 11 Letters.
Flight 11 - 81 on board - 8 + 1 = 9
Flight 175 - 65 on board - 6 + 5 = 11
Flight 93 - 63 on board - 6 + 3 = 9