Line Wall Curtain, Defensive sea wall in Gibraltar, United Kingdom.
Line Wall Curtain is a fortified wall along Gibraltar's western coast that runs from North Bastion to Engineer Battery. The structure consists of stone walls with several bastions designed to protect the harbor and town from seaborne attacks.
British military engineers built the fortification during the 18th century, reusing remnants of earlier Spanish and Moorish defensive structures. The construction was expanded and reinforced multiple times over the following centuries as warfare technology evolved.
The wall has been the face of Gibraltar's defense for centuries and shapes how locals connect with their history. Visitors can walk along sections where the relationship between the town and the sea becomes clear through the structure's design.
The best time to visit is early morning or late afternoon when the light shows off the stonework well. You can access the wall from several points, particularly starting from Casemates Square and moving south toward the Waterport area.
The structure contains an ancient water supply system with clay pipes that once carried water from mountain springs to ships in the harbor. Sections of this system are still visible and show how engineering was woven into the daily life of the port.
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