Why Cities Exist

Build your website with Squarespace for 10% off at http://Squarespace.com/HAI Subscribe to Half as Interesting (The other channel from Wendover Productions):    / halfasinteresting   Check out my podcast with Brian from Real Engineering: http://apple.co/2ydYZOd (iTunes link) http://bit.ly/2gyeFle (YouTube link) Support Wendover Productions on Patreon:   / wendoverproductions   Get a Wendover Productions t-shirt for $20: https://store.dftba.com/products/wend... Youtube:    / wendoverproductions   Twitter:   / wendoverpro   Email: [email protected] Reddit:   / wendoverproductions   Animation by Josh Sherrington (   / heliosphere  ) Sound by Graham Haerther (http://www.Haerther.net) Thumbnail by Joe Cieplinski (http://joecieplinski.com/) “Divider” by Chris Zabriskie “Babylon Disco Ultralounge” by Kevin MacLeod“Cooperation Road” by Unicorn Heads, “Night Music” by Kevin Macleod, “Namaste” by Audionautix Big thanks to Patreon supporters: M, Pete, Ken Lee, Victor Zimmer, Paul Jihoon Choi, Dylan Benson, Etienne Deschamps, Donald, Chris Allen, Abil Abdulla, Anson Leng, John & Becki Johnston, Connor J Smith, Arkadiy Kulev, Hagai Bloch Gabot, William Chappell, Eyal Matsliah, Joseph Bull, Marcelo Alves Vieira, Hank Green, Plinio Correa, Brady Bellini