Portugal

 

Nossa Senhora da Graça Fort

Officially Conde de Lippe Fort and known historically as La Lippe, is a fort in the village of Alcáçova, about 1 kilometre north of the town of Elvas in the Portalegre District of Portugal. The fort is a 150 metres quadrangle with pentagonal bastions at the corners. Four ravelins cover the curtain wall, half of which form part of the monumental gate (Dragon Gate). The central part of the square features a circular redoubt with two floors and a parapet with gun ports. The fort's circular tower has two vaulted floors: the first consisting of a decorated chapel and the second the Governor's House. Below the chapel, carved into the rock, there is a cistern. Externally, the structure is completed by a hornwork and a wide dry moat.