Qalet Marku Battery - Credit: Wikimedia Commons
Qalet Marku Battery (), also known as D'Orbeau Battery (), was an artillery battery in Baħar iċ-Ċagħaq, limits of Naxxar, Malta. It was built in 1715–1716 by the Order of Saint John as one of a series of coastal fortifications around the Maltese Islands. The battery has been largely destroyed, but some remains can still be seen. Read more on Wikipedia
Source: en.wikipedia.org