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The UK has separate heritage organisations for each of England, Scotland, Wales and Northern Ireland so the easiest way to do this is probably to get the data from Open Street Map. Features on OSM can be tagged as 'historic=castle' so you can download only features that have that tag. However, I'd suggest reading the documentation page that I've linked to ...


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I doubt there is any pan European dataset that maps boulders! In the UK the national mapping agency OS will map on 1:25,000 scree, boulder fields and the like, I suspect this data is in OS MasterMap. I would imagine other national mapping agencies will capture similar detail although quality and resolution will surely vary. There are very few datasets that ...


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The website kasteleninnederland.nl has a database of all Dutch castles, including coordinates, photos, paintings, and more information. Note that everything is in Dutch, but for the coordinates that shouldn't be a problem. The search page has a search option, if you select "intact" under "Toestand" it will give you a list of all 244 ...


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