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The most iconic photos from Sept. 11 and its aftermath

Survivors fleeing, covered in debris. First responders hoisting the American flag over rubble. The New York skyline filled with ash — its two twin towers newly missing. Seventeen years after the Sept. 11 terrorist attacks, these are the images that are still etched in Americans’ minds. Nearly 3,000 people died on Sept. 11, 2001, making it the deadliest terrorist attack on U.S. soil.

Remembrance ceremonies will mark the anniversary across the country on Tuesday, including the site of the crashes in New York, Washington and Pennsylvania. President Trump and first lady Melania Trump will attend a remembrance in Shanksville, Pa.

As President George W. Bush said in his November 2001 address to the United Nations: “Time is passing. Yet, for the United States of America, there will be no forgetting September the 11th.”

F-16 pilot was ready to give her life on Sept. 11

Three firefighters who responded to Ground Zero died on the same day. They all suffered from cancer.

9/11 ‘Dust Lady’ Marcy Borders, featured in a haunting photo, has died of cancer

Listen to the story about Heather Penney, an F-16 fighter pilot whose mission was to bring down the fourth hijacked plane on 9/11:

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The iconic 9/11 flag that disappeared 15 years ago has been found — nearly 3,000 miles away

Iconic images from 9/11 and the aftermath

USA - YEAREND PICTURES 2001 - With the Brooklyn bridge in the foreground, a plane explodes after hitting the second tower of the World Trade Center as the other tower burns, in New York September 11, 2001. Both towers of the complex collapsed after hijacked planes hit them. REUTERS/Sara K. Schwittek ORG XMIT: POY33D ORG XMIT: M0112210347270387 (STR/REUTERS)