September 11, 2001 was like any other day in America, until the first plane crashed into the World Trade Center's North Tower. From that moment on, our nation and our people would be forever changed. Twenty years later, this one ounce .999 fine silver round memorializes the heroes of 9/11: the firefighters, EMS, police and other first responders who selflessly gave all to help the victims of the attack. The reverse depicts the New York City skyline as it stood before the towers fell. The time that each building was struck is also inscribed along with its weight and purity.