吉菲昂喷泉（Gefion springvandet）喷泉位于阿美琳堡王宫以北500米，离卡斯泰雷特要塞 Kastellet 以及小美人鱼很近。It features a large-scale group of animal figures being driven by the Norse goddess Gefjun. It is located in Nordre Toldbod area next to Kastellet and immediately south of Langelinie. It is the largest monument in Copenhagen and used as a wishing well. The fountain was donated to the city of Copenhagen by the Carlsberg Foundation on the occasion of the brewery’s 50-year anniversary. It was originally supposed to be located in the main town square outside city hall, but it was decided instead to build it near the Øresund in its current location near Kastellet ("The Citadel").
It was designed by Danish artist Anders Bundgaard, who sculpted the naturalistic figures 1897-99. The basins and decorations were completed in 1908. The fountain was first activated on July 14, 1908.
