Full Credits:
https://www.youtube.com/watch?v=GekQqFZm7mA
(@funkatron)[http://twitter.com/funkatron]( Creative Commons Attribution-ShareAlike 4.0 International license)[https://creativecommons.org/licenses/by-sa/4.0/]
https://en.wikipedia.org/wiki/Seven_Bridges_of_K%C3%B6nigsberg
https://en.wikipedia.org/wiki/File:Konigsberg_bridges.png (Creative Commons Attribution-Share Alike 3.0 Unported license)[https://creativecommons.org/licenses/by-sa/3.0/deed.en]
https://en.wikipedia.org/wiki/File:7_bridges.svg (Creative Commons Attribution-Share Alike 3.0 Unported license)[https://creativecommons.org/licenses/by-sa/3.0/deed.en]
https://en.wikipedia.org/wiki/File:K%C3%B6nigsberg_graph.svg (Creative Commons Attribution-Share Alike 3.0 Unported license)[https://creativecommons.org/licenses/by-sa/3.0/deed.en]
https://en.wikipedia.org/wiki/Ledger https://en.wikipedia.org/wiki/Ledger#/media/File:Ledger.png (public domain)
Other images either generated by the author or used with permission of Neo4j staff <3