|Airship over Kohlenstoffburg|
|Map of Kohlenstoffburg|
|Map Coordinates||11°10′26″N 5°7′39″E|
|Province/territory||(Capital City, Separate Province)|
|Settled|| c. 860 AD
by the Wirbelese
|City||1,535,234 (1886 estimate)|
Kohlenstoffburg/Altwissenburg is the capital of Wirbel which is also known as Altwissenburg. The city is located in a flat area of south-cental Wirbel and is the home of the AeroWirbel company, which created Wirbel's first airship.
Kohlenstoffburg was founded in the early middle ages by Germanic Tribes.