On both sides of Gharghur there are two valleys: Wied id-Dis and Wied Anglu. The village is flanked by two other hills almost of the same height (450ft) above sea level: Birguma and Madliena. On both hill-tops there were two fortresses; while Birguma had an anti-aircraft battery (now demolished), Madliena kept guard against sea intruders since 1880, and it is still there but in disuse. The Gharghur Battery at Tal-Ferha was turned into a small lepers' hospital, recently closed.

Other Military constructions are:

1. The Semaphore Tower on the road to Naxxar.
2. An old searchlight station at Lancrietka, First World War.
3. A Signal Station (Second World War) near the Broadcasting Authority Master Antenna.
4. The Victoria Lines built in 1878-80. This low defence was, winding about through hills and villages, starts at the foot of Madlinea facing Bahar ic-Caghaq and ends at Bingemma.

(Article written by Rev. Carmelo Bezzina)