Works destroyed in the September 11 attacks
- Ideogram (1967) stainless steel sculpture by James Rosati
- Cloud Fortress (1975) a large, black granite piece by Japanese artist Masayuki Nagare, destroyed in the 9/11 rescue and recovery efforts.
- The World Trade Center Tapestry a 20′ x 35′ tapestry by Joan Miró
- Sky Gate, New York (1977–78) large wooden sculpture by Louise Nevelson
- A memorial fountain for the victims of the 1993 World Trade Center bombing by Elyn Zimmerman
- World Trade Center Stabile (1971) a 25′ red steel sculpture by Alexander Calder. Approximately 30% of the sculpture was recovered.
- Some 300 sculptures and drawings by Auguste Rodin, part of the Cantor Fitzgerald collection.
- Needle Tower (1968) by Kenneth Snelson.
- Recollection Pond, a tapestry by Romare Bearden.
- Path Mural, by Germaine Keller.
- Commuter Landscape, a large mural by Cynthia Mailman.
- Fan Dancing with the Birds, a mural by Hunt Slonem.
- The Entablature Series by Roy Lichtenstein
- Approximately 40,000 negatives of photographs by Jacques Lowe documenting the presidency of John F. Kennedy.
- The Sphere, an abstract sculpture by Fritz Koenig, survived the collapse but was seriously damaged, and now serves as a memorial.
Countless other works of art and valuable artifacts, found in safe deposit boxes located throughout the towers, were also destroyed.
Two other sculptures were damaged, but not destroyed by the attacks. These are Red Cube by Isamu Noguchi and Joie de Vivre by Mark di Suvero, located down the street from the World Trade Center. They were repaired and still stand today.