192K views · 1.7K reactions | "If at any point in my life what I did mattered, it was now." Created in collaboration with National September 11 Memorial & Museum , the four-night limited series #911OneDayInAmerica continues TONIGHT at 9/8c. Catch up now on Hulu | National Geographic TV | Facebook

9/11: One Day in America tells the in-depth story of September 11th through the eyes of the witnesses, heroes and survivors. Made in collaboration with the 9/11 Memorial & Museum to mark the 20th anniversary. 9/11: One Day in America is on National Geographic from 6 September to 11 September, every night at 7.30pm AEST. | National Geographic Australia

291K views · 7.6K reactions | Starting 31st August at 9pm, 9/11: One Day in America marks 20 years since the tragic events of September 11th 2001. This groundbreaking documentary series tells the definitive story of the day through the experiences of those who were there. | National Geographic UK | Facebook

9/11: One Day in America is a gripping six-part documentary produced by Dan Lindsay and TJ Martin, which gives a personal account on the events on the fateful day of 11 September 2001. | National Geographic Africa

20 years ago the world changed forever. From National Geographic and National September 11 Memorial & Museuml, 9/11: ONE DAY IN AMERICA is a six-part chronicle of the events of that day, from the gripping stories of first responders and survivors. Premieres Aug 29 at 9/8c on National Geographic TV #911OneDayinAmerica | National Geographic Documentary Films