Flat Bastion, Military fortification in Gibraltar, United Kingdom.
The Flat Bastion extends southward from Charles V Wall, featuring south-facing walls that join at an obtuse angle to create a distinctive defensive position.
Built between 1552 and 1627, the bastion received military upgrades in 1859 with six guns, including four 12-pounders and two 12-pound carronades for defense.
The structure, formerly known as Baluarte de Santiago, represents the evolution of Gibraltar's military architecture from Spanish to British control periods.
The Flat Bastion Magazine, located within the eastern section, now functions as a geological research facility open to visitors by appointment.
The bastion includes a magazine building designed with specialized brick walls to absorb potential explosions from the 5,000 gunpowder barrels it stored.
Location: Gibraltar
GPS coordinates: 36.13482,-5.35139
Latest update: March 6, 2025 22:00
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