| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castle of Alegrete |  | Rio Grande do Sul | Americas | 1160 | website | Alegrete | Brazil | 39.2370500000 | -7.3241500000 | Portugal | Map | ||||||
| Guardia de San Martín | Rio Grande do Sul | Americas | website | São Martinho da Serra | Brazil | -29.5377777800 | -53.8547222200 | Map | |||||||||
| Fuerte Jesús | Rio Grande do Sul | Americas | website | Rio Grande, Rio Grande do Sul | Brazil |