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AI Engineering
Hacker News·14d ago·5 min read
The World's 2,400 Castles
TL;DR
Castlemap is an interactive map showcasing 2,435 significant castles, fortresses, and palaces across 129 countries. It utilizes open data from sources like Wikidata and Wikimedia Commons to provide detailed information and images.
✦ Why It Matters
Engineers can use open data principles to create similar interactive platforms for other domains, enhancing public access to information.
Key Takeaways
- Explore 2,438 curated castles across 130 countries for free.
- Contribute to Castlemap by improving Wikidata entries.
- Download the full dataset in GeoJSON or CSV formats.
- Check castle fame scores based on Wikipedia coverage.
Full Summary
Castlemap is a comprehensive interactive atlas featuring 2,438 notable castles, fortresses, and palaces from 130 countries. It utilizes open data from sources like Wikidata for facts and coordinates, Wikimedia Commons for images, and OpenFreeMap for the basemap.
Each landmark is curated to ensure it has a documented story, a real photo, and precise coordinates, making the map both informative and navigable. France leads with 183 entries, followed by Italy, Germany, England, and Japan.
Users can explore the map without an account and contribute by improving Wikidata entries for additional castles. The dataset is available for download in GeoJSON or CSV formats, promoting further exploration and research.