The clock that is frozen in time: Department of Defense release pictures of the horrific aftermath of 9/11 from inside the Pentagon - including charred offices, candid pictures of Bush and a timepiece that stopped when the plane hit (29 Pics)

It's been 16 years since the horrific 9/11 terror attacks happened leaving nearly 3,000 people dead 

Department of Defense released dozens of images showing aftermath of attacks at Pentagon and Twin Towers

The Tribute in Light rose above the lower Manhattan skyline on Sunday evening honoring those who died

Thousands of 9/11 victims' relatives, survivors, rescuers and others are expected to gather Monday at the World Trade Center to remember the deadliest terror attack on American soil

It's been 16 years since the horrific September 11th attacks happened in America that left 2,996 people dead and more than 6,000 others wounded. Newly released photos show the aftermath of the series of coordinated terror attacks at the World Trade Center, the Pentagon (above) and a field near Shanksville, Pennsylvania

An image of a clock frozen at the time of impact at the Pentagon is pictured above. The image was taken by Sgt. Larry A. Simmons

The powerful photos include candid shots of then-President George Bush as the devastating attacks were unfolding

A burned and melted telephone along with other items sit on top of an office desk inside of the fifth floor at the Pentagon

A very normal office building filled with filing cabinets was reduced to twisted metal and ashes, with only the cabinets themselves left standing after the attacks at the Pentagon

Then-President George W. Bush and then-Vice President Dick Cheney are pictured above having a discussion about the horrific incident

The inside of the Pentagon complex shows the damage caused by fire and the water used to bring the flames under control

Melted and burned out office equipment is pictured above inside of the Pentagon after the terror attacks

Forensics officers cordoned off the area around where part of what appears to be the plane's fuselage in American Airlines colors was left on the lawn outside the Pentagon

The 'c' of American Airlines is clear in this piece of the plane's fuselage found on the ground in the images from the Pentagon

President George W. Bush is pictured above greeting firefighters, police and rescue personnel on September 14, 2001 in New York City

Pictured above is an aerial view of the damage at the Pentagon in Washington, DC two days after the terror attacks

President George W. Bush greets rescue workers, firefighters and military personnel outside of the Pentagon

Pictured above is members of the FBI and firefighters removing the carnage of the Pentagon after the attack when American Airlines flight 77 plunged into the building

The damaged Pentagon building is pictured above as FBI and other emergency officials work together

FBI agents dressed in protective clothing are pictured above removing evidence from the carnage

Piles of rubbish is pictured above at the Pentagon after the deadliest terror attack in American history

Then-Vice President Dick Cheney is pictured above sitting with then-National Security Advisor Condoleezza Rice inside of the President’s emergency operations center

Then-Secretary of State Colin Powell gets briefed inside the President’s emergency operations center

New York National Guard soldiers from the 69th Infantry Division work alongisde members of the New York City firefighters to remove rubble from the World Trade Center

President Bush is pictured above talking on the telephone on September 11, 2001, as senior staff huddle aboard Air Force One

President Bush is pictured above speaking with Vice President Dick Cheney, National Security Adviser Condoleezza Rice and other advisers 

Vice President Dick Cheney and National Security Adviser Condoleezza Rice look on inside the President’s emergency operations center during the terror attacks

President George W. Bush grasps the hand of his father, former President George H. W. Bush, after speaking at the service for America’s National Day of Prayer and Remembrance, Former President Bill Clinton, his wife and daughter are also pictured 

Pictured is smoke rising from the World Trade Center in New York City on September 11, 2001 

Pictured above soldiers from the 3rd Infantry Regiment (The Old Guard) rendering honors as firefighters and rescue workers unfurl a huge American flag over the side of the Pentagon

The Tribute in Light rises above the lower Manhattan skyline on Sunday evening, one day before September 11

The two blue pillars of light provide a visual reminder of how the Twin Towers, destroyed in the terrorist attacks of September 11, 2001, once stood above the city skyline