Poca Roca Cave

Middle Hill is a hill in the British Overseas Territory of Gibraltar. It is located at the northern end of the Upper Rock Nature Reserve. It figured prominently in the early history of the 1704 siege of Gibraltar by the Spanish and French. The artillery battery at Middle Hill had been constructed by 1727 and was active for more than two centuries. In the mid twentieth century, Middle Hill transitioned to use as an aerial farm for the Ministry of Defence. The radio farm was refurbished in 1958. About 1970, the Princess Caroline's Battery Group of Barbary macaques were moved to Middle Hill, where they were provisioned at a group of derelict buildings that were part of the battery complex. In 2005, much of Middle Hill was transferred from the Ministry of Defence to the Government of Gibraltar, and is now managed by the Gibraltar Ornithological and Natural History Society.

Tovey Battery was an artillery battery in the British Overseas Territory of Gibraltar.

Fordham's Accommodation are underground parallel chambers within the Rock of Gibraltar built during the Second World War. These are part of the extensive tunnels of Gibraltar. The chambers were named after Colonel H M Fordham OBE, MC, who was Chief Engineer in Gibraltar. The chambers were based on Liddell's Union Tunnel.

Middle Hill Battery is an artillery battery in the British Overseas Territory of Gibraltar. It is located on Middle Hill, at the northeastern end of the Upper Rock Nature Reserve, just south of Green's Lodge Battery and Rock Gun Battery. The emplacement dates to 1727, when a single gun was mounted. By the turn of the twentieth century, six 10-inch rifled muzzle-loading guns were present at Middle Hill Battery. Other buildings documented at that time as part of the battery complex included the Nursery Hut (barrack accommodation) and the Middle Hill Group, the latter a cluster of buildings which perched on the cliff edge. An anti-aircraft Bofors gun had been installed at the battery by the Second World War. After the war, the area transitioned to use as a Ministry of Defence aerial farm. In 2005, the battery and surrounding area were transferred to the Government of Gibraltar. The site is now managed by the Gibraltar Ornithological and Natural History Society.

Governor's Lookout Battery is one of the many artillery batteries in the British Overseas Territory of Gibraltar, which served to protect it against its many sieges. It is located off Signal Station Road within the Upper Rock Nature Reserve.

Willis' Magazine is an 18th-century large magazine in the British Overseas Territory of Gibraltar. The magazine sits on a plateau with several artillery batteries.

The Calpe Hole Generating station is an abandoned power station located in the rock of Gibraltar, accessed via the Great North Road, Gibraltar. The turbines were made by Ruston (engine builder) which were taken over by English Electric in the early 20th century. The roof in the station was made by Herbert Morris Ltd from Loughborough.

The Gibraltar Aerobeacon built in 1841 is one of several lighthouses in Gibraltar, the British Overseas Territory at the southern end of the Iberian Peninsula. It is also known as the Gibraltar Aviation Light and Gibraltar Aero Light. The active beacon is positioned atop the Rock of Gibraltar and is operated by the Government of Gibraltar.

Collin's Cave is a cave in the British Overseas Territory of Gibraltar. It is located in the northeastern part of the Rock, between Reservoir Fissure and Middle Hill Cave. The cave is above Catalan Bay. It is one of the many caves in Gibraltar. It is believed to be archaeologically important and is listed in the government's Heritage and Antiquities Act 2018.

The Great Siege Tunnels in the British Overseas Territory of Gibraltar, also known as the Upper Galleries, are a series of tunnels inside the northern end of the Rock of Gibraltar. They were dug out from the solid limestone by the British during the Great Siege of Gibraltar of the late 18th century.

The Great North Road is a large road tunnel in the British Overseas Territory of Gibraltar. It was constructed by the British military during World War II inside the Rock of Gibraltar and remains property of the Ministry of Defence to this day. The road allowed lorries to travel from the north to the south of Gibraltar entirely within the Rock. The tunnel still contains the remains of World War II buildings such as Nissen huts, kitchens, offices as well as a generating station and period anti-submarine nets.

The second siege of Gibraltar was an abortive attempt in 1316 by the forces of the Azafid Ceuta and the Nasrid Emirate of Granada to recapture Gibraltar, which had fallen to the forces of Ferdinand IV of Castile in 1309.