Are There Any 3-Landlocked Countries?

Best VPN there is: https://www.privateinternetaccess.com/standupmaths

UK boundary data from the OS.
https://osdatahub.os.uk/downloads/open/BoundaryLine

World Country data from opendatasoft.
https://public.opendatasoft.com/explore/dataset/world-administrative-boundaries/table/

USA states from looking at them very closely.

"English counties explained" by Map Men
https://www.youtube.com/watch?v=hCc0OsyMbQk

Oh look, a video about the City of London
https://www.youtube.com/watch?v=LrObZ_HZZUc

Target 10.b
"in particular least developed countries, African countries, small island developing States and landlocked developing countries, in accordance with their national plans and programs".
https://en.wikipedia.org/wiki/Sustainable_Development_Goal_10

Graphics artfully animated by Christian Lawson-Perfect. https://somethingorotherwhatever.com/

The other person in the field was Matt Watson, my tour manager. He also makes music: https://mattwatsonmusic.bandcamp.com/

Massive thanks to my Patreon supports. They are a huge amount of Alp. https://www.patreon.com/standupmaths

CORRECTIONS
- Now I regret mentioning the Danube river! Apart from that one aside about international diplomacy and a port: for the rest of the networks I did not include rivers, even if they are navigable to an ocean. I appreciate these would change things like London and apparently the USA has some super great lakes.
- Let me know if you spot anything else!

Happy birthday to Eliyahu!

Filming and editing by Alex Genn-Bash
Graphics by Christian Lawson-Perfect
Muddy field navigating with Matthew Watson
Written and performed by Matt Parker
Produced by Nicole Jacobus
Music by Howard Carter
Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/
US book: https://www.penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker/
UK book: https://mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback

Видео Are There Any 3-Landlocked Countries? канала Stand-up Maths