Hammering Man is a series of monumental kinetic sculptures by Jonathan Borofsky. The two-dimensional painted steel sculptures were designed at different scales (from approximately 12 feet to 49 feet high), were painted black, and depict a man with a motorized arm and hammer movement to symbolize workers throughout the world. They were structurally engineered by Leslie E. Robertson Associates (LERA). Borofsky has stated that "The Hammering Man is a worker. The Hammering Man celebrates the worker. He or she is the village craftsman, the South African coal miner, the computer operator, the farmer or the aerospace worker-the people who produce the commodities on which we depend." Installations Models of various sizes in the series have been installed in public spaces and museums throughout the United States and Europe, with the first 3.4 m (11.5 ft) high wood model shown at the Paula Cooper Gallery. The largest model reaches approximately 21 metres (69 ft), mid-size models at approximately 15 m (49 ft) and at 7 m (23 ft). Seoul The largest Hammering Man is in Seoul, South Korea () next to the Heungkuk Life Insurance building in the Gwanghwamun area of the city. Installed in 2002, it stands 22 m (72 ft) high and weighs 50 tons. Seoul's Hammering Man strikes a blow every minute and seventeen seconds and is considered an important city landmark. In August 2009, the city of Seoul completed a project to move the sculpture 4.8 m/16 ft closer to the sidewalk and dedicated a new small gallery park at the site. A spiral path surrounding the statue was created to enhance its presence. Specially designed benches, landscaping, and lighting were also added to the surrounding park. Frankfurt The Hammering Man sculpture in Frankfurt, Germany is 21 metres (68.9 ft) tall and was commissioned in 1990, for the new Messeturm (exhibition tower) building at the Frankfurt Trade Fair (). An unofficial 6 ft tall copy of the Hammering Man appeared in Frankfurt in the 1990s in the Hülya-Platz (in the district Bockenheim, ). It was donated by a citizen's group against neo-nazism to commemorate the Solingen arson attack of 1993, and its hammer was designed with a hand crank that demolished a swastika emblem. This stealth sculpture was often vandalized and in April 2007 it was removed and scrapped after becoming so badly damaged and corroded that it was considered a danger for public safety. It was