Castro of Chibanes
The  Castro of Chibanes is located in the Arrábida Nature Park, on the Serra do Louro (Louro Hill), in the municipality of Palmela in the Setúbal District of Portugal, about 25 km (16 mi) south of the capital of Lisbon, which can be seen from the site. The Castro, or hill fort, is located at the top of the hill, naturally defended by a scarp to the south. It covers about one hectare and was first occupied in about 2900 BCE, during the Chalcolithic or Copper Age. It is registered as a Zona Especial de Protecção (a Special Protection Area) and also classified as a Sitio de Interesse Público (Site of Public Interest).