It was created for the following Map Men Video:
More about the concept of sister cites and twin towns.
What they are
- Sister cities (in the U.S.) and twin towns (in the U.K. and much of Europe) mean essentially the same thing.
- It’s when two cities (sometimes towns, counties, or even regions) in different countries form a formal partnership.
Purpose
The idea is to build international connections at the local community level, not just government-to-government. Partnerships usually focus on:
- Cultural exchange (student exchanges, art, sports, festivals)
- Educational cooperation (school partnerships, university research links)
- Economic ties (business delegations, trade promotion, tourism)
- Problem-solving (sharing expertise on city planning, environment, transportation, etc.)
- Friendship & peace-building (especially after wars, many twinnings were started to encourage reconciliation)
Origins
- The concept of twin towns originated in the UK in 1920 with Keighley twinning with Poix-du-Nord in France, marking the world’s first use of the term “twin towns”.
- The practice grew after World War II in Europe, to promote peace and mutual understanding.
- In the U.S., President Eisenhower launched “Sister Cities International” in 1956 to foster “people-to-people diplomacy.”
Examples
- Dull, Scotland twinned with Boring, Oregon and Bland, Australia.
- Paris, France and Rome, Italy are twinned (“only with each other,” as a special symbolic bond).
- Boston, U.S. has sister city ties with Kyoto, Japan and Belfast, Northern Ireland, among others.
- Shanghai, China has dozens of sister cities worldwide, including San Francisco.
And amazingly, Felix Lemke (see comment below) has done the same for 7,000 of Germany’s Twin cities:










Ian says
Doesn’t work for me (Chrome on MacOS).
The arcs wriggle around and stop dead before they reach anywhere.
Brilliant Maps says
My guess is the load on the server is too much as their video was just recently released.
Felix Lemke says
Hi MapMen,
you really got me nerd-sniped here. I sat down and did a similar thing for Germany. Luckily, there is a publicly available database with partner cities (Twin Towns):
https://www.rgre.de/partnerschaft/datenbank
Interestingly, there are around 7000 entries in the DB.
They also have a map and a download option. Since I really like the map style of kepler, I did a script fetching all geo-coordinates for the cities (using https://www.geoapify.com/), cleaned up a little bit and created a map.
Just let me share the twin town list and the generated image with all of you:
https://drive.google.com/drive/folders/1UllFFHrgFiRwA8787kI6-0nLZzvfsekq?usp=sharing
I hope you like it.
Brilliant Maps says
Amazing work!