of tropical horticulture and garden artistry. The overall concept of its master plan by Grant Associates draws inspiration from an orchid as it is representative of the tropics and of Singapore, being the country's national flower, the Vanda 'Miss Joaquim'. The orchid takes root at the waterfront (conservatories), while the leaves (landforms), shoots (paths, roads and linkways) and secondary roots (water, energy and communication lines) then form an integrated network with blooms (theme gardens and Supertrees) at key intersections. Conservatories The conservatory complex at Gardens by the Bay comprises two cooled conservatories – the Flower Dome and the Cloud Forest, situated along the edge of Marina Reservoir. The conservatories, designed by WilkinsonEyre and Grant Associates, are intended to be an energy-efficient showcase of sustainable building technologies and to provide an all-weather edutainment space within the Gardens. Both are very large (around ) and the Flower Dome is the world's largest columnless glasshouse. The construction of the glasshouses is special in two ways. First of all by being able to have such large a glass-roof without additional interior support (such as columns). Secondly, because the constructions aim strongly at minimizing the environmental footprint. Rainwater is collected from the surface and circulated in the cooling system which is connected to the Supertrees. The Supertrees are used both to vent hot air and to cool circulated water. Flower Dome The Flower Dome is the largest greenhouse in the world as listed in the 2015 Guinness Book of World Records at 1.2 hectares (3.0 acres) and replicates a cool-dry mediterranean climate. It features a changing display, the flower field, and eight other gardens, namely The Baobabs, Succulent Garden, Australian Garden, South African Garden, South American Garden, Olive Grove, California Garden and the Mediterranean Garden. These eight gardens exhibit exotic flowers and plants from the Mediterranean and semi-arid regions from five different continents. Here is the list of some plants growing in the Flower Dome: Cloud Forest The Cloud Forest is higher but slightly smaller at . It replicates the cool moist conditions found in tropical mountain regions between and above sea level, found in South-East Asia, Central- and South America. It features a "Cloud Mountain." After ascending to the top by an elevator, visitors descend the mountain via a circular path which crosses underneath the waterfall multiple times. The "Cloud Mountain" itself is an intricate structure completely clad in epiphytes such as orchids, ferns,