Oklahoma City National Memorial, History museum and national memorial in downtown Oklahoma City, United States

The Oklahoma City National Memorial occupies the former site of the Alfred P. Murrah Federal Building on NW 5th Street. Its Outdoor Symbolic Memorial covers 3.3 acres and centers on a thin sheet of water flowing over polished black granite, the Reflecting Pool, running east to west along what was once Fifth Street. The Field of Empty Chairs holds 168 glass, bronze and stone chairs on the lawn where the building stood, arranged in nine rows for the building's nine floors.

After the April 19, 1995 bombing destroyed the Alfred P. Murrah Federal Building, Mayor Ron Norick appointed a task force to plan a memorial on the site. Of 624 submitted designs, the one by Hans and Torrey Butzer was chosen in July 1997, and President Bill Clinton signed the memorial act that October. The Outdoor Symbolic Memorial was dedicated on April 19, 2000, and the museum opened February 19, 2001.

The memorial fence, first put up to let rescuers work and investigators search, became a place where people left flowers, photographs and letters on the day of the bombing; many of these items are now in the museum. Visitors still attach licence plates, soft toys, letters and ribbons to it. Schools in the US and Canada sent hand-painted ceramic tiles, which children used to express their thoughts and comfort.

The outdoor area remains accessible around the clock and works for both a brief visit and longer reflection. The museum offers additional exhibits and educational programs that are available only during regular opening hours.

Two bronze gates mark the moment of the attack and show the times 9:01 and 9:03, the minute before and after the explosion. Each seat bears the name of one person, with smaller seats representing children and larger ones representing adults.