Rocha dos Namorados

The Rocha dos Namorados is a large upright granite stone located in the parish of Corval, municipality of Reguengos de Monsaraz, in the Évora District of the Alentejo region of Portugal. It is sometimes considered to be a menhir or standing stone but there is no evidence of it having been placed at the site and it seems to be a natural outcrop, although it does have some dimpled, megalithic engravings, as well as a cross, which is believed to have been carved in order to Christianise what was an ancient ritual. It is considered a rare example of the veneration of stones associated with a secular, pagan fertility rite that has continued to the present.

Source: Wikipedia