Barcelona is a city in Spain. It is the capital and largest city of Catalonia, as well as the second most populous municipality of Spain. With a population of 1.6 million within city limits, its urban area extends to numerous neighbouring municipalities within the Province of Barcelona and is home to around 4.8 million people, making it the sixth most populous urban area in the European Union after Paris, London, Madrid, the Ruhr area and Milan. It is one of the largest metropolises on the Mediterranean Sea, located on the coast between the mouths of the rivers Llobregat and Besòs, and bounded to the west by the Serra de Collserola mountain range, the tallest peak of which is 512 metres (1,680 feet) high.

Founded as a Roman city, in the Middle Ages Barcelona became the capital of the County of Barcelona. After merging with the Kingdom of Aragon, Barcelona continued to be an important city in the Crown of Aragon as an economic and administrative centre of this Crown and the capital of the Principality of Catalonia. Barcelona has a rich cultural heritage and is today an important cultural centre and a major tourist destination. Particularly renowned are the architectural works of Antoni Gaudí and Lluís Domènech i Montaner, which have been designated UNESCO World Heritage Sites. The headquarters of the Union for the Mediterranean are located in Barcelona. The city is known for hosting the 1992 Summer Olympics as well as world-class conferences and expositions and also many international sport tournaments.

Barcelona is one of the world's leading tourist, economic, trade fair and cultural centres, and its influence in commerce, education, entertainment, media, fashion, science, and the arts all contribute to its status as one of the world's major global cities. It is a major cultural and economic centre in southwestern Europe, 24th in the world (before Zürich, after Frankfurt) and a financial centre. In 2008 it was the fourth most economically powerful city by GDP in the European Union and 35th in the world with GDP amounting to €177 billion. In 2012 Barcelona had a GDP of $170 billion; and it was leading Spain in employment rate in that moment.

In 2009 the city was ranked Europe's third and one of the world's most successful as a city brand. In the same year the city was ranked Europe's fourth best city for business and fastest improving European city, with growth improved by 17% per year, and the city has been experiencing strong and renewed growth for the past three years. Since 2011 Barcelona has been a leading smart city in Europe. Barcelona is a transport hub, with the Port of Barcelona being one of Europe's principal seaports and busiest European passenger port, an international airport, Barcelona–El Prat Airport, which handles over 50 million passengers per year, an extensive motorway network, and a high-speed rail line with a link to France and the rest of Europe.

Mallorca is the largest island in the Balearic Islands, which are part of Spain and located in the Mediterranean. The native language, as on the rest of the Balearic Islands, is Catalan, which is co-official with Spanish.

The capital of the island, Palma, is also the capital of the autonomous community of the Balearic Islands. The Balearic Islands have been an autonomous region of Spain since 1983. There are two small islands off the coast of Mallorca: Cabrera (southeast of Palma) and Dragonera (west of Palma). The anthem of Mallorca is "La Balanguera".

Like the other Balearic Islands of Menorca, Ibiza and Formentera, the island is an extremely popular holiday destination, particularly for tourists from Germany and the United Kingdom. The international airport, Palma de Mallorca Airport, is one of the busiest in Spain; it was used by 28.0 million passengers in 2017, increasing every year since 2012.

The name derives from Classical Latin insula maior, "larger island". Later, in Medieval Latin, this became Maiorica, "the larger one", in comparison to Menorca, "the smaller one".

Málaga is a municipality, capital of the Province of Málaga, in the Autonomous Community of Andalusia, Spain. With a population of 569,130 in 2015, it is the second-most populous city of Andalusia and the sixth-largest in Spain. The southernmost large city in Europe, it lies on the Costa del Sol (Coast of the Sun) of the Mediterranean, about 100 kilometres (62.14 miles) east of the Strait of Gibraltar and about 130 km (80.78 mi) north of Africa.

Málaga's history spans about 2,800 years, making it one of the oldest cities in the world. According to most scholars, it was founded about 770 BC by the Phoenicians as Malaka From the 6th century BC the city was under the hegemony of Ancient Carthage, and from 218 BC, it was ruled by the Roman Republic and then empire as Malaca (Latin). After the fall of the empire and the end of Visigothic rule, it was under Islamic rule as Mālaqah for 800 years, but in 1487, the Crown of Castille gained control after the Reconquista. The archaeological remains and monuments from the Phoenician, Roman, Arabic and Christian eras make the historic center of the city an "open museum", displaying its history of nearly 3,000 years.

This important cultural infrastructure and the artistic heritage have culminated in the nomination of Málaga as a candidate for the 2016 European Capital of Culture.

The painter and sculptor Pablo Picasso, Hebrew poet and Jewish philosopher Solomon Ibn Gabirol and the actor Antonio Banderas were born in Málaga. The magnum opus of Cuban composer Ernesto Lecuona, "Malagueña", is named after the music of this region of Spain.

The most important business sectors in Málaga are tourism, construction and technology services, but other sectors such as transportation and logistics are beginning to expand. The Andalusia Technology Park (PTA), located in Málaga, has enjoyed significant growth since its inauguration in 1992. Málaga is the main economic and financial centre of southern Spain, home of the region's largest bank, Unicaja, and the fourth-ranking city in economic activity in Spain behind Madrid, Barcelona and Valencia.

Vigo is a city and municipality adjoining the Atlantic Ocean in the province of Pontevedra in Galicia, northwest Spain. It is the capital of the comarca of Vigo and Vigo metropolitan area.

Vigo is the most populous municipality of Galicia, the 14th in Spain, and the most populous Spanish municipality that is not the capital of a province. It has an area of 109.06 km2 (42.11 sq mi) and had a population of 292,817 in 2016.

The city is located in the southwest of Galicia, in the southern part of Vigo Ria, one of Europe's rainiest areas. In the northeast, it borders the municipality of Redondela; in the east, Mos; in the south, O Porriño and Gondomar; and in the southwest, Nigrán. On the other side of its bay are the municipalities of Cangas and Moaña. They are all part of the southern Galician region called Rías Baixas. Vigo is just north of the border with Portugal; its nearest larger city is Porto, Portugal's second-largest city.

Vigo and its metropolitan area are one of the region's primary economic agents.

Порту является вторым по величине городом Португалии после Лиссабона и одним из крупных городских районов Пиренейского полуострова. Население самого города составляет 237 591 человек, а в столичном районе Порту, который выходит за административные пределы города, проживает 1,9 миллиона человек (2011 год) на площади 2 395 км2 (925 кв. Миль), что делает его вторым самый большой городской район в Португалии. Он признан глобальным городом гамма-уровня Исследовательской группой по глобализации и глобальным городам (GaWC), единственным португальским городом, кроме Лиссабона, который был признан глобальным городом.

Расположенный вдоль устья реки Дору на севере Португалии, Порту является одним из старейших европейских центров, и его историческое ядро ​​было объявлено ЮНЕСКО объектом Всемирного наследия в 1996 году. Западная часть его городской территории простирается до береговой линии Атлантического океана. Его поселение датируется много веков, когда он был форпостом Римской империи. Его объединенное кельтско-латинское имя, Portus Cale, было названо происхождением названия «Португалия», основанного на транслитерации и устной эволюции от латыни. На португальском языке название города пишется с определенной статьей  о Порту ; следовательно, его английское название произошло от неправильного толкования устного произношения и упоминается как  Опорто  в современной литературе и многими ораторами.

Lisbon is the capital and the largest city of Portugal, with an estimated population of 505,526 within its administrative limits in an area of 100.05 km2. Its urban area extends beyond the city's administrative limits with a population of around 2.8 million people, being the 11th-most populous urban area in the European Union. About 3 million people live in the Lisbon Metropolitan Area (which represents approximately 27% of the country's population). It is mainland Europe's westernmost capital city and the only one along the Atlantic coast. Lisbon lies in the western Iberian Peninsula on the Atlantic Ocean and the River Tagus. The westernmost areas of its metro area form the westernmost point of Continental Europe, which is known as Cabo da Roca, located in the Sintra Mountains.