The National September 11 Memorial & Museum (known separately as the 9/11 Memorial and 9/11 Memorial Museum) are the principal memorial and museum, respectively. They commemorate the September 11, 2001, attacks, which killed 2,977 victims, and the World Trade Center bombing of 1993, which killed six. The memorial is located at the World Trade Center site, the former location of the Twin Towers, which were destroyed during the September 11 attacks. It is operated by a non-profit corporation whose mission is to raise funds for, program, own, and operate the memorial and museum at the World Trade Center site.

A memorial was planned in the immediate aftermath of the attacks and destruction of the World Trade Center for the victims including those involved in rescue operations. The winner of the World Trade Center Site Memorial Competition was Israeli architect Michael Arad of Handel Architects, a New York- and San Francisco-based firm. Arad worked with landscape-architecture firm Peter Walker and Partners on the design, a forest of trees with two square pools in the center where the Twin Towers stood. In August 2006, the World Trade Center Memorial Foundation and the Port Authority of New York and New Jersey began heavy construction on the memorial and museum. The design is consistent with the original Daniel Libeskind master plan, which called for the memorial to be 30 feet (9.1 m) below street level—originally 70 feet (21 m)—in a plaza, and was the only finalist to disregard Libeskind’s requirement that the buildings overhang the footprints of the Twin Towers. The World Trade Center Memorial Foundation was renamed the National September 11 Memorial & Museum in 2007.

The National September 11 Memorial is a tribute of remembrance and honor to the nearly 3,000 people killed in the terror attacks of September 11, 2001 at the World Trade Center site, near Shanksville, Pa., and at the Pentagon, as well as the six people killed in the World Trade Center bombing in February 1993.

The Memorial’s twin reflecting pools are each nearly an acre in size and feature the largest manmade waterfalls in North America. The pools sit within the footprints where the Twin Towers once stood. Architect Michael Arad and landscape architect Peter Walker created the Memorial design selected from a global design competition that included more than 5,200 entries from 63 nations.

The names of every person who died in the 2001 and 1993 attacks are inscribed into bronze panels edging the Memorial pools, a powerful reminder of the largest loss of life resulting from a foreign attack on American soil and the greatest single loss of rescue personnel in American history.

The National September 11 Memorial Museum serves as the country’s principal institution for examining the implications of the events of 9/11, documenting the impact of those events and exploring the continuing significance of September 11, 2001.

The Museum’s 110,000 square feet of exhibition space is located within the archaeological heart of the World Trade Center site—telling the story of 9/11 through multimedia displays, archives, narratives and a collection of monumental and authentic artifacts. The lives of every victim of the 2001 and 1993 attacks will be commemorated as visitors have the opportunity to learn about the men, women, and children who died.

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The monumental artifacts of the Museum provide a link to the events of 9/11, while presenting intimate stories of loss, compassion, reckoning, and recovery that are central to telling the story of the attacks and the aftermath.