Today is a day of great mourning as we remember that tragic day back in 2001 when almost 3000 people were killed in a terrorist attack.

In honor of all those who fell on that day, Cal Expo has opened up their September 11 Memorial Plaza to the general public for free.

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The exhibit includes an exquisite fountain that features the names of every victim inscribed on its surface, a bell tower, and individual memorials to American Airlines Flight 77 and United Airlines Flight 93.

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Besides free admission, there will also be free parking today for the event.

It’s set to run from 7:00 am to 4:00 pm, so make sure to stop by.

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For more information, head right here.