Map of the world's great castles and fortresses

marklit 223 points 152 comments July 21, 2026
thecastlemap.com · View on Hacker News

Discussion Highlights (19 comments)

pastemato

Immediately curious about the concentration of castles on the Ghanaian coast. Wonder what that's about.

pizzathyme

We just stayed in Dalhousie Castle, the oldest in Scotland. Very beautiful and well maintained, with lots of spooky history. If you want to leave a legacy, build something out of stone.

guyzero

Interesting that in Canada Rideau Hall counts, but Casa Loma does not.

runxel

Very cool project, but obviously missing (too) many great castles. I'm not sure if that way of measuring popularity is really well done.

kinow

I went to a castle in Dunedin, New Zealand, but NZ seems to be castle-less: Larnach Castle, https://www.larnachcastle.co.nz/ . Brazil also has a few castles, although not sure if they are classified differently -- https://pt.wikipedia.org/wiki/Lista_de_castelos_no_Brasil

samfar90

Clicking on full story doesn't do anything. It closes the popup (mobile android)

1970-01-01

Why nothing in North America but forts? There are lots of ancient structures that should be considered. Ex: https://en.wikipedia.org/wiki/Montezuma_Castle_National_Monu...

onion2k

Invading Australia is looking pretty tempting right now.

jollyllama

Needs some of the ones referenced here (including the Dupont Castle, the work of the site's author, who lasted provided a work update in '22): https://news.ycombinator.com/item?id=27929729 See also https://news.ycombinator.com/item?id=44948352

hurghada

Hungary has more than a lot missing https://hu.wikipedia.org/wiki/Magyarorsz%C3%A1gi_v%C3%A1rak_...

hggh

Wrong title. Wrong not even by two orders of magnitude.

modeless

Is Fort Ross really "Renowned" as listed? I've never heard of it and honestly it doesn't look very interesting. I'd rather visit Fort Knox which is a real fortification currently in use, world famous, and not listed here.

clickety_clack

This is off by many degrees of magnitude for Ireland at least: https://www.reddit.com/r/dataisbeautiful/comments/1nkvqd7/oc...

mxfh

If you submit some map, at least don't have the title contradict the content description: "the 2,435 most significant landmarks worldwide, ordered by a fame ranking that blends Wikipedia coverage with real readership." or someone fix the title here please to what on the app right now: "Map of the world's great castles & fortresses" whatever that means. Germany's Saxony alone has 700+ fortications with about 100 being touristically interesting. In the map I count like 9.

holoduke

There are many castles near my parents house in france. I don't see any of them? AI generated?

deton3991

What's really neat about this isn't just the visualization, but that they’ve packaged the whole dataset as open GeoJSON/CSV mirrored on Hugging Face and GitHub—plus an MCP endpoint for AI agents.

dyauspitr

Is a palace a castle? If so then there are a huge number missing in India.

dolmen

Château de Saint-Cloud, near Paris, reported as "renowned ruin" ??? What a joke! Only the gardens remain. Even more ridiculous : Bastille also reported as "renowned ruin". Nothing remains. All stones have disappeared centuries ago.

allturtles

This dataset is bad. The North Carolina state capitol is a castle?

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