| name | image | style | date demolished | type | use | administrative division | continent | date completed | date Start construction | Website | Height (m) | city | Country | latitude (°) | longitude (°) | Original_owner/Owner/Protection | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Citadelle de Belle-Île-en-Mer |  | Fortified Castle | Various | Brittany | Europe | 19th century | 1549 | website | Le Palais | France | 47.3494000000 | -3.1547000000 | Sébastien le Prestre de Vauban | Map |