| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alte Burg (Osterode) |  | Lower Saxony | Europe | website | Osterode am Harz | Germany | 51.7166671753 | 10.2500000000 | Map | ||||||||
| Pipinsburg (Osterode) | Lower Saxony | Europe | website | Osterode am Harz | Germany | 51.7414000000 | 10.2147000000 | Map |