view of fortaleza de la mola, the biggest european fortresses built in the 19th century on

view fortaleza de la mola biggest european fortresses built 19th century fortress menorca minorca spain historic medieval isabel ii monument ancient landmark architecture building europe destination island baleares entrance brick stone historical military harbor harbour port vacation attraction visit popular mao mediterranean mahon holiday army sea landscape coast fort defensive wall tourism travel defend arches window ocober 13 2019