Netherlands, South Holland, Lisse, 05-05-2016; Aerial view of the Keukenhof in spring colors, fresh tulips, amaryllis, crocuses and more in the world's largest flower park in Lisse. Every year the Keukenhof turns in the spring to a colorful sea of flowers. In 2017, the theme of the 68th edition is the Golden Age. ? foto | photo John Gundlach/Hollandse Hoogte