London has an estimated population of as much as 9.18 million which means that a lot of hard work goes on behind the scenes to make sure that the city runs efficiently.
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 DCD Rights to Little Dot Studios. Any queries, please contact us at: firstname.lastname@example.org
#London #HowCitiesWork #Urban #spark #sparkdocumentary #sciencedocumentary