Unforgettable photos of 9/11 terrorist attacks

CNN TV channel posted unforgettable photos during the 9/11 terrorist attacks exactly 15 years ago.

The firefighter was alone among the remnants of the Zero Land, which once existed two towers of the World Trade Center (WTC) on September 11, 2001.

The cleaning team at the WTC towers collapsed in Steve McCurry's photo.

A survivor of the 9/11 terrorist attacks wrote on this cap on the cover of the car cap covered by dust.

The young mother coaxed the baby on the roof of a Brooklyn house while the black smoke at the scene of the 9/11 attack enveloped the sky in lower Manhattan.

The scene is like the apocalypse on Lower Manhattan after the two towers collapsed.

Reporter Steve McCurry recorded an image of a group of firefighters entering the Zero Zone.

The dust covered the inside of a building after 9/11.

The stunned man was holding a piece of paper thrown from two towers.

Dust ash is clinging to a thick layer on the streets near WTC.

Two masked firefighters were present near the north tower collapsed on a fateful day 15 years ago.

The medical staff lifted a victim out of the stretcher to bring it to an ambulance to the hospital.

The woman sealed her nose to protect herself from the dusty dense ash after the two towers collapsed.

Firefighters arrived at the scene in New York on September 11, 2001.