British fortifications at Fort St.Elmo in Valletta.
Guarding the entrance to both Marsamxett and Grand Harbours is Fort St Elmo, named after the patron saint of mariners. Although now much altered and extended, this was the fort that bore the brunt of Turkish arms during the Great Siege of 1565. It was built by the Knights in 1552 to guard the entrances to the harbours on either side of the Sceberras Peninsula. The courtyard outside the entrance to the fort is studded with the lids of underground granaries.
Source: http://www.lonelyplanet.com/malta/valletta/sights/fortress/fort-st-elmo
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