Castle of Óbidos built
1101 CE.
Shown on the map at 39.364°, -9.158°.
The Castle of Óbidos (Portuguese: Castelo de Óbidos) is a well preserved medieval castle located in the civil parish of Santa Maria, São Pedro e Sobral da Lagoa, in the Portuguese municipality of Óbidos, the historical province of Portuguese Estremadura.
Text from the Wikipedia article Castle of Óbidos, licensed CC BY-SA 4.0.