Taichung Metropolitan Park in Taichung, Taiwan is designed to preserve nature, educate citizens and provide a recreational space, where citizens can spend their free hours in the lap of nature and learn more about the ecosystem. The main purpose of the park was to provide a recreational space, purify the air, reduce its pollution, conserve water and soil, regulate temperature and reduce noise. Besides the educational function, people can take a walk in the park and enjoy the starry sky.