Anta de Carcavelos — Wikipedia

The Anta de Carcavelos, located close to the village of Carcavelos near the town of Lousa in the municipality of Loures in the Lisbon District of Portugal, is a stone age dolmen (burial chamber) or megalithic monument from the Chalcolithic period. It is one of many such tombs that have been identified in Portugal. The Anta was a communal grave consisting of a sepulchral chamber with a polygonal shape. The remains of the tomb consist of six cretaceous limestone slabs that originated in the area, which has several sizeable limestone outcrops. Five of these slabs are believed to have been...