Fort of São Julião da Barra

The Fort of São Julião da Barra is the largest and most complete military defence complex in the Vauban style remaining in Portugal. It is located in São Julião da Barra, on the point of São Gião, in the parish of Oeiras e São Julião da Barra, Paço de Arcos e Caxias, Oeiras Municipality, Lisbon District.

Considered in the past as the most important maritime fortification in the country, it had originally, together with the Fort of São Lourenço do Bugio, the role of controlling access to the port of Lisbon. It is currently the official residence of the Portuguese Minister of National Defence.