The Flower Dome, at 1.2 hectares (3.0 acres), is the world’s largest greenhouse, according to the 2015 Guinness Book of World Records, replicating a mild, dry Mediterranean environment. It includes a changeable exhibit, a flower field, and eight other gardens; namely, The Baobabs, Succulent Garden, Australian Garden, South African Garden, South American Garden, Olive Grove, California Garden, and Mediterranean Garden. Exotic flowers and plants from the Mediterranean and semi-arid regions of five continents are on display in these eight gardens. An entry ticket is needed to access the Flower Dome. For further information, visit Gardens by the Bay Official Site.