The Sphere
| Company type | Sculpture |
|---|---|
| Industry | Art, Memorial |
| Founded | 1971 |
| Founder | Fritz Koenig |
| Fate | Relocated multiple times; currently a memorial |
| Headquarters | New York City , United States |
Area served | Public art, Memorial site visitors |
Key people | Fritz Koenig (artist) |
| Products | Bronze sculpture, memorial artwork |
| Owner | Port Authority of New York and New Jersey |
The Sphere—officially titled Große Kugelkaryatide N.Y. and also referred to as Sphere at Plaza Fountain, WTC Sphere, or Koenig Sphere—is an imposing cast bronze sculpture crafted by the German artist Fritz Koenig (1924–2017).
Recognized as the largest contemporary bronze sculpture globally, it was prominently situated on the Austin J. Tobin Plaza between the Twin Towers of the World Trade Center in New York City from 1972 until the events of September 11 attacks. With a weight exceeding 20 tons, it stands as the sole piece of artwork recovered mostly unscathed from the Twin Towers’ collapse. Following its removal, the sculpture was stored near a hangar at John F. Kennedy International Airport and featured in the 2001 documentary Koenig's Sphere. Since then, it has been dedicated as a memorial commemorating the attacks.
From 2002 until 2017, it was displayed in Battery Park, after which the Port Authority of New York and New Jersey transferred it to Liberty Park, where it overlooks both the September 11 Memorial and its original location. The sculpture was rededicated on August 16, 2017, remaining in its damaged state from the attack.
Artwork
Initially named Große Kugelkaryatide N.Y. / Great Caryatid Sphere N.Y. (catalogue raisonné Sk 416), this piece was developed during the late 1960s and early 1970s by Fritz Koenig while he was active in the United States.
The commission originated when World Trade Center architect Minoru Yamasaki encountered Koenig’s work exhibited at New York’s George W. Staempfli Gallery and subsequently invited him to create a fountain sculpture for the plaza between the Twin Towers, which were then under construction. In 1967, Koenig secured the commission from the Port Authority of New York and New Jersey, owners of the site.
The Sphere reflects Koenig’s artistic period centered on caryatids—figures representing resistance against confining geometric shapes. Mounted atop a tall porphyry disk measuring in diameter, this bronze sphere completed one full rotation every 15 minutes. The adjacent Plaza Fountain pumped water at a rate of 160 gallons (600 liters) per second, producing an illusion of the sphere emerging from water. The intricate hydraulic mechanism was engineered by the Technical University of Munich's Institute for Hydrology and River Basin Management, where Koenig had been lecturing since 1964. Weighing more than twenty tons and standing tall with a diameter , it remains Koenig’s largest bronze work, which he affectionately dubbed his "biggest child."
The sculpture was fabricated between late 1968 and 1971 in Ganslberg near Landshut, Germany—Koenig’s place of residence—necessitating construction of a new workshop hall to accommodate the full-scale plaster model. With assistance from Hugo Jahn and sculptor Josef Plankensteiner, Koenig supervised casting of 67 bronze sections (totaling seventeen tons) at Munich's Hans Mayr foundry before final assembly took place in Ganslberg.
After four years encompassing design and production phases, the sculpture was disassembled and transported in a custom oversized wooden crate via Bremen to New York. Installed on the World Trade Center plaza in 1971, it quickly became a prominent landmark and favored gathering spot symbolizing "world peace through trade." Although officially named "Große Kugelkaryatide N.Y.," it gained popular recognition as "Koenig Sphere" or simply "The Sphere."
Immediately following the attacks
In the aftermath of the September 11 attacks, the sculpture was carefully extracted from the debris and transported to a location near John F. Kennedy International Airport for safekeeping. Its retrieval attracted extensive attention from local media outlets. As one of the few prominent elements from the Twin Towers site that remained largely intact, considerable debate ensued regarding its potential inclusion in a commemorative memorial.[1]
During this uncertain period, German filmmaker Percy Adlon, known for his previous works on Koenig, created Koenigs Kugel (Koenig's Sphere). The documentary captures Koenig and Adlon visiting Ground Zero five weeks after the incident, where Koenig initially expressed opposition to reinstalling The Sphere, describing it as "a beautiful corpse".[2]
Relocation to Battery Park
Six months later, on March 11, 2002, the sculpture was reinstalled in Battery Park near the Hope Garden, several blocks away from its original site. Koenig personally supervised the installation, which involved four engineers and 15 ironworkers constructing a new foundation. The rededication ceremony was attended by Mayor Michael Bloomberg, former mayor Rudy Giuliani, and other dignitaries, symbolizing its transformation from an artistic piece into a memorial monument. Reflecting on its new context, Koenig remarked, "It now has a different beauty... It has its own life – different from the one I gave to it."[3]
A plaque adjacent to The Sphere states:
Relocation to Liberty Park
In the summer of 2012, restoration work on Battery Park’s lawn necessitated moving The Sphere, which is owned by the Port Authority of New York and New Jersey (PANYNJ). Liberty Park—located between 90 West Street and the World Trade Center Memorial—was considered as a permanent destination; however, since its completion was not expected until at least 2014, a temporary relocation was required. By early 2011, no definitive plan had been established, leaving open the possibility that the sculpture might be placed in storage.
An online petition initiated by families affected by 9/11 advocated for returning The Sphere to the 9/11 Memorial and had amassed over 7,123 signatures by March 2011. Despite this support, officials preferred to avoid placing artifacts within the memorial plaza itself. On June 28, 2012, PANYNJ announced its backing for incorporating The Sphere into the National September 11 Memorial & Museum plaza. Executive Director Patrick J. Foye highlighted its importance as a survivor of the attacks and as a tribute to Port Authority personnel lost on that day.
When Liberty Park officially opened in June 2016, the sculpture’s final placement remained undecided. Subsequently, on July 22, 2016, the Port Authority approved relocating The Sphere to Liberty Park. The move was finalized in August 2017, and on September 6 of that year, it was unveiled in its permanent location overlooking the World Trade Center site. A formal ceremony commemorating its return to the World Trade Center complex was held by the Port Authority on November 29, 2017.
Documentary
The film Koenigs Kugel – der deutsche Bildhauer Fritz Koenig im Trümmerfeld von Ground Zero ("Koenig's Sphere"), directed by German filmmaker Percy Adlon, documents Koenig's interaction with his damaged sculpture shortly after the events of September 11. The documentary explores how the artwork was repurposed into a commemorative monument. Koenig offers insights into the creation of The Sphere, its impermanence, and the transformation of artistic meaning following the attacks.
Book
In June 2021, a special limited edition titled THE SPHERE – Vom Kunstwerk zum Mahnmal / THE SPHERE – From Artwork to Memorial was published to honor the 50th anniversary of the sculpture’s original installation.
See also
External links
- Articles with short description
- 1971 sculptures
- Artworks in the World Trade Center
- Bronze sculptures in Manhattan
- Memorials for the September 11 attacks
- Monuments and memorials in Manhattan
- Outdoor sculptures in Manhattan
- Relocated buildings and structures in New York City
- 1971 establishments in New York City
- Pages with reference errors
- Pages with script errors