DuPont Circle marks Sphere number Three, and is shaped like a Point in a Circle. (Get it?)
In 1871 the Corps of Engineers began construction of Dupont Circle itself which at the time was called Pacific Circle. In 1882 Congress authorized a memorial statue of Rear Admiral Samuel Francis DuPont in recognition of his Civil War service. The bronze statue was erected in 1884. In 1921 the statue of Dupont was replaced by a double-tiered white marble fountain. It was designed by sculptor Daniel Chester French and architect Henry Bacon. Three classical figures, symbolizing the Sea, the Stars and the Wind are carved on the fountain's central shaft.