This is a visualisation of the German AIXM dataset for Frankfurt Airport. The Aeronautical Information Exchange Model is a data set used by countries to digitally describe their aeronautical data and is set to replace the AIP (Aeronautical Information Publication) wich is the second picture.

These maps form the backbone of every flight, as they determine who goes where when aeroplanes are taxiing on the ground.

This is part of a larger project to simplify the use of AIXM datasets, which cannot be visualised using standard GIS tools.

If you want to know more you can try the wms service to stream AIXM datasets via map services https://geoserver.delorean-aixm.com/geoserver/ows?service=WMS&version=1.3.0&request=GetCapabilities

or go to the offical repo to find out more : https://github.com/3l-gee/delorean-aixm

An interactive map of the world's major river systems and the ancient cities that grew up alongside them:

https://rnrand.github.io/river-civs/

(Mostly AI with a few manual additions by me.)

Bibliography

1. Aldenderfer, Mark. "Defining Zhang Zhung Ethnicity: An Archaeological Perspective from Far Western Tibet." In Discoveries in Western Tibet and the Western Himalayas, edited by Amy Heller and Giacomella Orofino, 1–21. Leiden: Brill, 2007.
2. Bajpai, K. D. Indian Numismatic Studies. New Delhi: Abhinav Publications, 1976.
3. Bela Lahiri, M. A. "CAN THE SO-CALLED ‘MITRAS’ BE IDENTIFIED WITH ŚUNGAS?." Proceedings of the Indian History Congress 16 (1953): 57–61.
4. ———. Indigenous States of Northern India (Circa 200 B. C. to 320 A. D.). Kolkata: Calcutta University Press, 1974.
5. Bivar, Adrian David Hugh. "GONDOPHARES." Encyclopaedia Iranica. Published December 15, 2002.
6. Cribb, Joe. "DATING AND LOCATING MUJATRIA AND THE TWO KHARAHOSTES." Journal of the Oriental Numismatic Society 223 (2015): 26–48.
7. Ditter, Michael. "The Parthian Empire Map." Tabulae Geographicae. Accessed August 31, 2026.
8. Gazerani, Saghi. The Sistani Cycle of Epics and Iran’s National History. Leiden: Brill, 2015.
9. Jenott, Lance. "The Voyage around the Erythraean Sea." Silk Road Seattle. Published June 2004.
10. MacDowall, David William. "AZES." Encyclopaedia Iranica. Published December 15, 1988.
11. ———. "AZILISES." Encyclopaedia Iranica. Published December 15, 1988.
12. Olbrycht, Marek J. "THE EARLY REIGN OF MITHRADATES II THE GREAT IN PARTHIA." Anabasis: Studia Classica et Orientalia 1 (2010): 144–158.
13. Pandey, M. S. "THE ORIGIN AND TERRITORIAL EXTENSION OF THE MITRA KINGS." Proceedings of the Indian History Congress 29 (1967): 74–76.
14. Ray, Himanshu P. Monastery and Guild: Commerce under the Sātavāhanas. New Delhi: Oxford University Press, 1986.
15. Schoff, Wilfred H. Parthian Stations by Isidore of Charax. Philadelphia: Commercial Museum, 1914.
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19. Sharma, R. K., and Misra, O. P. Archaeological Excavations in Central India: Madhya Pradesh and Chhattisgarh. New Delhi: Mittal Publications, 2003.
20. Shastri, Ajay M. The Sātavāhanas and the Western Kshatrapas. Nagpur: Dattsons, 1998.
21. Sircar, D. C. Studies in the Geography of Ancient and Medieval India. Delhi, Patna, and Varanasi: Motilal Banarsidass, 1971.
22. Srivastava, Prashant. "THE DATE OF GONDOPHARNES." Proceedings of the Indian History Congress 65 (2004): 159–164.
23. Stein, Rolf. A. Tibetan Civilization (EN translation by J. E. Stapleton Driver). London: Faber & Faber Ltd, 1972.
24. Virji, Krishnakumari J. Ancient History of Saurashtra. Mumbai: Konkan Institute of Arts and Sciences, 1955.
25. Zadneprovskiy, Y. A. "The Nomads of Northern Central Asia after the Invasion of Alexander." In History of Civilizations of Central Asia, Volume 2, edited by János Harmatta, 457–472. Paris: UNESCO Publishing, 1994.

Made by Branko Greškovič – 1. September 2026.

Updated for accuracy and added more sites.

Disclaimer: This is a personal list, not an advice on where it is safe to cycle.
Cyclists welcome to judge.
For context I recently bikepacked only in The Netherlands, Germany, Denmark, Sweden and Norway. Which is colored how it made me feel. But the only countries I have not traveled to in Europe ever are: Finland, Estonia, Latvia, Lithuania (Planned for next year) - & Russia, Belarus, Ukraine, Moldova. Which are just randomly colored from stories heard or videos seen.
So everything else is a guess from primarily what I've witnessed the roads to be like from the past decade of traveling through them.
Also, of course it always depends on region/city/town of any country but that's too much detail to get into here.

Chess ratings are derrived from chessever.com, while population estimates are sourced from https://data.worldbank.org/ .

Edit: By "per capita" I meant per one million.

Just a fun weekend project I worked on this summer. I wanted to create a visual overview of when different map projections have appeared in history.

The information was adapted from Wikipedia’s “List of map projections” and is shared under the Creative Commons.

Feel free to reuse or adapt it—attribution would be appreciated! Cheers!

Comments, changes, advice, and improvements are more than welcome! :)

In 2025, Russia had a GDP of $2.6 trillion with a population of 145 million. Jiangsu and Shanghai had a GDP of $2.8 trillion with a population of 110 million.