Ruins of Fort St. Barbara

The Estadio Municipal de La Línea de la Concepción is a multi-purpose stadium located in La Línea de la Concepción, Cádiz Province, Spain. It is currently used for football matches and is the home stadium of Real Balompédica Linense. On 15 October 1969, it hosted Spain's 6–0 win over Finland in the 1970 FIFA World Cup qualification. On 7 June 1984, Spain played a friendly against Yugoslavia at the ground, and lost 0–1. On 21 March 2018, Andorra played a friendly against Liechtenstein, in which the former won 1–0.

The Feria de La Línea, (Fair of La Línea in English) also known as La Salvaora or La Velada is a Feria (festival) and one of the most important celebrations in the Spanish municipality of La Línea de la Concepción. The Spanish word feria originally designates a fair (agricultural, books, ...). Bullfights are often given on the occasion of fairs, so the Spaniards came to designate by the term "fair" a series of bullfightings organized on this occasion, and often - especially in Andalusia - the festivities that accompany these bullfights. In many parts of Spain, there are nevertheless still a parting between the festivities and the feria which takes place on this occasion, as is traditional the fair ends with a Bullfight in the La Línea de la Concepción Bullring.

Parque Municipal Reina Sofía is a park in La Línea de la Concepción, Spain. The park was known as the Parque Princesa Sofía, named after Sofia of Greece, when she became queen the park was renamed to Reina in 1975. It has an approximate area of 17.86 hectares. El Piojito, is the street market that occurs every Wednesday in the Park. The Feria de La Línea is celebrated here every year. There are bunkers from the time of the Spanish Civil War, a skate park, a dog park, Playground and many trees including Dragon tree, Platanus × hispanica, Chorisia speciosa, Ceratonia siliqua, Morus alba, Acer negundo, Jacaranda mimosifolia, Melia azedarach, Olea europaea, Cupressus sempervirens, Pinus pinea.

The Lines of Contravallation of Gibraltar (Spanish: Línea de Contravalación de Gibraltar or Línea de Gibraltar), known in English as the "Spanish Lines", were a set of fortifications built by the Spanish across the northern part of the isthmus linking Spain with Gibraltar. They later gave their name to the Spanish town of La Línea de la Concepción. The Lines were constructed after 1730 to establish a defensive barrier across the peninsula, with the aim of preventing any British incursions, and to serve as a base for fresh Spanish attempts to retake Gibraltar. They played an important role in the Great Siege of Gibraltar between 1779 and 1783 when they supported the unsuccessful French and Spanish assault on the British-held fortress. The siege was ended after the lines of contravallation were attacked by British and Dutch forces under the command of the Governor of Gibraltar, General Augustus Eliot. The attack caused the Spanish forces to retreat and abandon the fortifications and the combined British led forces virtually destroyed all the Spanish gun batteries and the enemy cannon and munitions either captured or destroyed. This attack is still commemorated to this day and is known as 'Sortie Day'. Only 25 years later they were effectively abandoned by the Spanish as the Peninsular War recast France as Spain's enemy and Britain as its ally. Stripped of guns, stores and garrison, which were sent elsewhere to bolster Spanish resistance against French forces, the Lines were demolished by the British in February 1810 with the permission of the Spanish as a French army approached. Although Napoleon had no intention of attacking Gibraltar, the British feared that the Lines could be used to support a French siege against the territory. The modern town of La Línea de la Concepción was subsequently established amidst the ruins of the fortifications, of which only a few fragmentary remains can be seen today.

Playa de Santa Bárbara is a beach in the municipality of La Línea de la Concepción, in the Province of Cádiz, Andalusia, Spain, located to the north of Gibraltar. It has a length of about 700 metres (2,300 ft) and average width of about 40 metres (130 ft). It is a busy beach promenade bounded by the city limits and south to the border with Gibraltar with Gibraltar Airport runway to the east and on the north by the Playa de Levante. In its vicinity are the remains of the Fort of Santa Barbara, an old fortification that participated in the Great Siege of Gibraltar in 1779. It has all the basic services required of an urban beach, daily waste collection season, toilets, showers and disabled access and presence of police and local rescue equipment.

The fifth siege of Gibraltar, mounted between August 1349 and March 1350, was a second attempt by King Alfonso XI of Castile to retake the fortified town of Gibraltar. It had been held by the Moors since 1333. The siege followed years of intermittent conflict between the Christian kingdoms of Spain and the Moorish Emirate of Granada, which was supported by the Marinid sultanate of Morocco. A series of Moorish defeats and reverses had left Gibraltar as a Moorish-held enclave within Castilian territory. Its geographical isolation was compensated for by the strength of its fortifications, which had been greatly improved since 1333. Alfonso brought an army of around 20,000 men, along with his mistress and their five illegitimate children, to dig in to the north of Gibraltar for a lengthy siege. In the New Year of 1350, however, bubonic plague – the Black Death – broke out in the Castilian camp. Alfonso refused to abandon the siege but fell victim to the plague on 27 March 1350, becoming the only monarch to die of the disease.

The tenth siege of Gibraltar in 1506 was a minor military action in which the Duke of Medina Sidonia, Juan Alfonso Pérez de Guzmán tried but failed to recover the fortress of Gibraltar from the troops who were holding it in the name of the newly united crowns of Castile and Aragon.

The seventh siege of Gibraltar (1436) was an unsuccessful attempt by the Castillian nobleman Enrique Pérez de Guzmán, 2nd Count de Niebla to capture the stronghold of Gibraltar from the Moors. He drowned during the attempt.

The eighth siege of Gibraltar (1462) was a successful effort by soldiers of the Kingdom of Castile to take the fortified town of Gibraltar from the Moors of the Emirate of Granada. Capture of this position, which was weakly defended and was taken with little fighting, was strategically important in the final defeat of the Moors in Spain.

The Gibraltar territory currently contains an 800-metre (2,625 ft) long section of the isthmus that links the Rock with mainland Spain. Spain does not acknowledge British sovereignty over Gibraltar beyond the fortified perimeter of the town as at 1704. The United Kingdom claims the southern part of the isthmus on the basis of continuous possession over a long period. As well as the airport, there are two substantial housing estates, a sports stadium, a secondary school, a marina, and a beach on this land, which de facto is an integral part of the territory of Gibraltar.

The Gibraltar–Spain border is the international boundary between the British Overseas Territory of Gibraltar and the Kingdom of Spain. It is also referred to as "The Fence of Gibraltar" (Spanish: La verja de Gibraltar) or simply "The Fence".The border runs east–west for a total of 1.2 kilometres (0.75 mi) separating Gibraltar from the neighbouring Spanish municipality of La Línea de la Concepción. Since Gibraltar (like the United Kingdom) is outside the European Union's Schengen Area, identity checks are required to cross the border.On 31 December 2020, an agreement in principle had been agreed between Spain and the United Kingdom, for Gibraltar to join the EU's Schengen Area while remaining a British Overseas Territory.

The bull ring in La Línea de la Concepción (Spanish: Plaza de Toros de la Línea de la Concepción), a town in the province of Cádiz at the southern edge of Spain, close to the British territory of Gibraltar, was opened in 1883.