The Castle of Arnóia is a medieval castle in civil parish of Arnóia, municipality of Celorico de Basto, the district of Braga. It is classified as a National Monument.
Wikipedia https://en.wikipedia.org/wiki/Castle_of_Arnóia
Official Website https://www.rotadoromanico.com/vPT/Monumentos/Monumentos/Paginas/CastelodeArnoia.aspx
Address 4890, Portugal
Coordinates 41°21'48.753" N -8°3'6.81" E