Emerald Playground’s name was inspired by its location on Jewel Avenue. The roadway was given its name because streets north of what is now Queens Boulevard were at one time given names in alphabetical order. Jewel Avenue, formerly known as Jewel Street, ran next to Kelvin Road, now 69th Road, which ran through a swamp in Flushing, over a stone bridge, and into Kew Gardens Hills. #Pomonok, Queens