In the immediate aftermath of 9/11, makeshift memorials to the lost began springing up around New York and elsewhere. The task of remembering continues today.
Among the heroes of the terrorist attack, a golden Labrador guided her blind owner to safety.
When Paul Carris led a co-worker out of the North Tower of the World Trade Center on 9/11, he could not have foreseen where Jesus was leading him.
Tim Lang lived through both attacks on New York's World Trade Center: In 1993 and then again in 2001, at 9/11.
With a whole generation who weren't even born before the attacks, it's vital to share with them the events of September 11, 2001.
The day after the 9/11 attacks on the United States, Pope John Paul II offered words of consolation at the Wednesday audience.
He saw the effects of evil at Ground Zero, and when he retired from the fire department, found a new way to save souls.
Susan Retik poured her grief into love for other women and children in need.
Jim Nicholson, then the U.S. Ambassador to the Holy See, reflects on his experience of the September 11 attacks and the response of John Paul II.
At Holy Rood Cemetery in Westbury, New York, the Bishop of the Diocese of Rockville Center preaches on the virtues that act as a lens to focus our past and our future.
When visiting the United States in 2015, Pope Francis offered this powerful prayer for peace and for the victims of 9/11.
"Peace for all, no more violence, no more terrorism!"
New Greek Orthodox church is taking shape 20 years after precursor destroyed in collapse of Twin Towers.
Whether at Ground Zero or leading prayer at home parishes, clergymen provided ministry of presence on tragic day.
When tragedy strikes and a large number of people die, here are a few Catholic ways to mourn their passing.
Now more than ever we need to embrace the gift of mercy.
A teacher who witnessed the collapse that killed her brother, a deacon who narrowly escaped, and a retired cop who helped bring victims home reflect on tragedy 20 years later.
