The Kansai International Airport is just that - and island built to provide the space for an airport - an engineering marvel. Forty-one aircraft can park at the immense terminal - the only man-made structure other than the Great Wall of China visible from space. The only problem is that this amazing airport is slowly sinking! Subscribe to Spark for more amazing science, tech and engineering videos - https://goo.gl/LIrlur Follow us on Facebook: https://www.facebook.com/SparkDocs/ Follow us on Instagram: https://www.instagram.com/spark_channel/?hl=undefined Content licensed from Kew Media to Little Dot Studios. Any queries, please contact us at: owned-enquiries@littledotstudios.com #spark #sparkdocumentary #sciencedocumentary