Tucked away in a small park in London is a wall of plaques dedicated to acts of everyday heroism.

In Postman's Park, nestled among Japanese musa basjoos and dove trees, is a gallery with many small tiles lining a 50-foot brick wall.

It's called the Memorial to Heroic Self-Sacrifice, and the 54 plaques each commemorate the brave acts of men, women, and children who perished trying to save others' lives.

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This heroic man 'hugged' a terrorist. And it likely saved hundreds of lives.

You should remember the name Najih Shaker Al-Baldawi.

Najih Shaker Al-Baldawi is a hero by any definition.

His story is one that everyone should remember — especially those of us who live outside the Muslim world.

On July 7, 2016, Al-Baldawi spotted a member of the Islamic State (ISIS) disguised in a military uniform, sneaking his way toward the Sayyed Mohammad Shrine in Balad, Iraq.

The terrorist — who had strapped himself in explosives as part of a three-man suicide bomb team — was aiming to destroy the sacred structure and take as many innocent lives as possible.

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I didn't respect my dad's job as a janitor. This is what I would tell him now.

Today she's proud to be a janitor's daughter, but she didn't always feel that way.

Argelia is a 39-year-old Mexican-American mom of two. She works as a training coordinator in Los Angeles, has a great family, and is known to wake up with a smile every day.

She gives a lot of credit to her late dad, Angel, though, who taught her the value of hard work and sacrifice. Her only regret is it took her a while to realize what he provided for his family. This is her story as told to Upworthy.

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