Construction of crescent buildings. The King Abdullah International Gardens have been designed to become a world-leading unique and environmentally sensitive botanical garden. The project is set within the arid desert of central Saudi Arabia and will create a facility that not only educates but also excites and entertains. Paleobotanical Gardens will be created within two interlocking, crescent-shaped biomes, showcasing the site’s passage through time, while the Garden of Choices will depict what the future may hold if climate change continues or is arrested.