September 11th, 2001 is a day that still haunts humanity.
You always remember where you were - that exact moment you saw the planes hit the World Trade Centre towers.
The sickening feeling, the confusion, the anger and sheer horror - it's a day that changed the complexion of the whole world irreparably.
Every year Americans, and indeed citizens of the world, mark the anniversary of 9/11 to remember the 2,977 people killed that day.
But as people in the US were gearing up to commemorate those who died in the atrocity 14 years on, something incredible happened.
A rainbow was spotted shining from the spot where the twin towers once stood in Lower Manhattan - Ben Sturner captured the moment from his balcony in Long Island.
It's an incredible shot of the natural phenomenon.
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