This photograph taken on June 28, 2012, shows visitors walking inside the cool conservatory dome at the Garden by the Bay in Singapore. Situated at the heart of Singapore’s new downtown at Marina Bay, the 101-hectare Gardens by the Bay which include two greenhouses and 220,000 plants from almost every continent was officially opened by Singapore prime minister Lee Hsien Loong for its Bay South garden. AFP PHOTO / ROSLAN RAHMAN (Photo credit should read ROSLAN RAHMAN/AFP/GettyImages)