Oklahoma City National Memorial – Gates of Time and Field of Empty Chairs

The Oklahoma City National Memorial's outdoor commemorative elements include the two 'Gates of Time', which frame the moment of the 9:02 a.m. bombing. The memorial's Field of Empty Chairs is a sculptural installation of 168 individual chairs, each representing a person killed in the 1995 bombing. The site also preserves the Survivor Tree, an American elm that survived the blast and is incorporated into the memorial's design.