From my photograph you can see that there is no structure at Cannon Park; however, the site and remaining columns speak to a previous structure.
The property at 131 Rutledge Avenue was originally a pond, later filled in and donated in 1880 to the city as “Cannon’s Mall,” named after Daniel Cannon, an owner of saw mills near this area. Not long after the donation, Charleston hired Frederick Law Olmstead to draw up a landscape design for the property; Olmstead is a name associated with many of the city parks in the United States, notably Central Park in New York. He also laid out the grounds of the Biltmore Estate in North Carolina.