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Koreller

Kartěrowar wot:
January 01, 2021
Last map edit:
July 27, 2025

About me

My nickname is Koreller, I’m a french contributor, I was born in 1995 and I live in Nantes. I am registered in OSM since January 1st 2021 and I started to contribute since July 2021.

Besides, I am a contributor to the Wikimedia projects (Wikipedia, Wikisource, Wikidata and Commons) since 2015.

See my diaries if you’re interested in a complete thematic guide, skyscrapers, how to map a capital city, JOSM tricks, or even 3D OSM at a glimpse!

Contribution

Pyongyang center OSM

I’m mainly focusing on mapping North Korea, for which I created a contribution guide on the wiki North Korea Mapping Guide, the french language version is the most up-to-date, and especially in Pyongyang. Early 2024, I began work on Ashgabat.

I also make some minor corrections in my department, but because it’s already well mapped, I prefer to map other areas.

Why am I mapping?

Mainly for the beauty of the maps, I love making and seeing beautiful maps full of detail and feeling the work behind the maps.

Secondly, on OpenStreetMap (as on Wikipedia in French) I like to do areas (or subjects) where I feel the added value is maximum: on OpenStreetMap mapping cities where almost no other detailed web map exists or is easily accessible, on Wikipedia in French it’s subjects for which Wikipedia in English has no article, that’s what I prefer!

My work on North Korea comes from the fact that it is unfortunately rare to have complete sources on any aspect of North Korea, and maps are a way of having something complete on certain themes. This data can be used by a whole range of actors, whether they be scientists, humanitarian aid workers, international organizations or the simply curious.

I’m particularly interested in the cities of totalitarian countries (aka Pyongyang, and now Ashgabat), because the diversity of things to map is great, they’re quite mysterious and secret!

Work in progress

Ashgabat OSM Work in Progress

Past work

3D

PYONGYANG Pyongyang 3D Demo F4map Skyline

Koreller loves OpenStreetMap <3

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“Keep OSM weird and fun”

Latest Diaries

Diary Entry Better OSM Diary : ideas, reflexions, improvements

I see many diaries on OSM, but unfortunately the good ones are hard to find, if they can be found at all. In this diary, I offer some perspectives...

Comments 5 comments Date July 01, 2025

Diary Entry Building drawing tips, a perfect guide

In this diary, I’m going to explain how I draw buildings (and shape in general), with my tricks for doing the most precise work possible and achiev...

Comments 25 comments Date September 01, 2024

Diary Entry Pyongyang Cities: Skylines

Mapping on OpenStreetMap allows many things, like 3D mapping.Having played Cities: Skylines, I was always intrigued by this game, and the idea emer...

Comments 8 comments Date March 01, 2024

Diary Entry Pyongyang Skyscrapers, a Wikidata-OSM-Commons synergy

In May 2023, I discovered the existence of two websites : “The Skyscraper Center” and “Skyscraper Page”, presenting skyscrapers from all over the w...

Comments 1 comment Date November 01, 2023