A former gardening school from 1861 on the museum island of Djurgården, Rosendals has been a foundation-run gardening center since 1982, with a mission to spread the good word regarding organic farming. To finance this quest, there is a shop, a traditional bakery, and a glorious open-air café/restaurant that pulls in dough, especially on cloudless summer days. A maximum of 100 people can fit inside, but there are always the beautiful green fields outside. Picnic aficionados bring a blanket so they don't get their tushes wet on the surrounding grassy knolls.