High Quality Content by WIKIPEDIA articles! Citygarden is an urban park and sculpture garden in St. Louis, Missouri owned by the City of St. Louis but maintained by the Gateway Foundation. It is located between Eighth, Tenth, Market, and Chestnut streets, in the city`s "Gateway Mall" area. Before being converted to a garden and park, the site comprised two empty blocks of grass. Citygarden was dedicated on June 30, 2009, and opened one day later, on July 1, 2009.