September 11, 2001. Creepy photos of the terrorist act.

An explosion in the southern tower during a collision with her plane flight 175 United Airlines in New York, September 11, 2001. The plane crashed into the building at a speed of 945 km / h. (Reuters / Sean Adair)

Taran by plane of the second tower of the World Trade Center, September 11, 2001.

Explosion of 3,800 liters of fuel remaining on board the aircraft during a collision with the southern tower of the WTC in New York. (AP Photo / Ernesto Mora)

The light struggles to break through the clouds of smoke and ash at the site of the collapse of the towers of the WTC. (AP Photo / Baldwin)

At 9:59 am on September 11, 2001, 56 minutes after the collision, the southern tower of the WTC begins to crumble. (AP Photo / Gulnara Samoilova)

South tower of the World Trade Center during the disaster of September 11, 2001. (AP Photo / Richard Drew)

The man jumps out to meet death from the northern tower of the WTC filled with smoke and flame. (Jose Jimenez / Primera Hora / Getty Images)

The northern tower of the WTC turns into a cloud of dust and debris in half an hour after the fall of the southern tower on September 11, 2001. The picture was taken from Jersey City, New Jersey, from the opposite bank of the Hudson River. (Reuters / Ray Stubblebine)

Construction debris and ash from the fall of the towers of the WTC as a result of the terrorist attack fill the streets of Manhattan, turning the city view into a picture of the Apocalypse. The buildings collapsed, buried under the wreckage of thousands of people. (AP Photo / Boudicon One)

A group of firefighters near the ruins of the southern tower of the WTC in New York, September 11, 2001. (Reuters / Peter Morgan)