O'Hara's Battery: A 19th-century Gibraltar gun emplacement with stunning views

Located on the British Overseas Territory of Gibraltar, O'Hara's Battery, built in 1890, stands at the highest point of the Rock, near the southern end of the Upper Rock Nature Reserve, close to Lord Airey's Battery. It was part of Gibraltar's fortification system in response to the Great Siege of 1779-1783. The battery was named after General Charles O'Hara, a former governor of Gibraltar who served from 1795 until his death in 1802. Originally intended as a watchtower, O'Hara's Folly was eventually demolished in 1888.

However, the battery remained in active use during World War II and is now open to the public as a tourist attraction. Visitors can explore the underground magazine, the engine room, and the gun turntable. The battery also houses a massive 9.2-inch Mark X BL gun, the last of its kind in the British Territory. This heavy gun, weighing 12 tons, was mounted on the battery in 1901 and could reach targets 16 miles away. The gun saw action during World War II and was last fired during a training exercise in 1976.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons