| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Altena Castle |  | North Rhine-Westphalia | Europe | 1100 | website | Altena | Germany | 51.2999992371 | 7.6833333969 | Map | |||||||
| Burg Holtzbrinck |  | North Rhine-Westphalia | Europe | website | Altena | Germany | 51.2999992371 | 7.6666665077 | Map |