Spain's northeastern coast is home to the city of Barcelona. It is the second most populated municipality in Spain and the capital and largest city of the Catalan autonomous community. Its urban area, which includes many neighboring municipalities in the province of Barcelona, is home to approximately 5.3 million people, making it the fifth most populous urban area in the European Union after Paris, the Ruhr region, Madrid, and Milan. Its city limits have a population of 1.6 million. Situated on the coast between the mouths of the rivers Llobregat and Besòs, and surrounded to the west by the Serra de Collserola mountain range, it is one of the biggest cities on the Mediterranean Sea. The Phoenicians or the Carthaginians, who maintained trading posts along the Catalonian coast, are said to have built Barcelona. Barcelona became the capital of the County of Barcelona during the Middle Ages. Barcelona, which remained the capital of the Principality of Catalonia, joined the Kingdom of Aragon to form the composite monarchy of the Crown of Aragon. It became the most important city in the Crown of Aragon and its main administrative and economic center, but it was soon overtaken by Valencia, which the Catalans had wrested from Moorish control, just before the dynastic union between the Crown of Castile and the Crown of Aragon in 1516. Barcelona became the epicenter of Catalan nationalism, momentarily joining France during the Reapers' War in the 17th century and again under Napoleon from 1812 to 1814. During the 19th and early 20th centuries, it saw industrialization and a number of worker movements. In 1931, it became the capital of Catalonia's autonomy, and from 1936 until its capture by the fascists in 1939, it served as the focal point of Catalonia's revolution during the Spanish Revolution. Barcelona once again served as the capital of an independent Catalonia following Spain's democratic transition in the 1970s. Barcelona's name is derived from the ancient Iberian Baŕkeno, which is recorded in an old coin inscription on the right side. It reads Barkeno in Iberian script, Barkinṓn in Levantine Iberian script, Βαρκιvώv in Ancient Greek sources, and Barcino, Barcilonum, and Barcenona in Latin. It's uncertain where the first population at the location of modern-day Barcelona came from. Various tombs and houses from before 5000 BC have been discovered among the remnants of an early settlement.Barcelona was founded by the mythical Hercules, according to Greek mythology. Barcelona hosted the Summer Olympics in 1992. What had previously been a predominantly industrial city is said to have undergone significant alterations as a result of these aftereffects. In order to prepare for the games, 3 km (2 mi) of beach were constructed and industrial buildings along the waterfront were removed. The city's road capacity expanded by 17%, its sewage processing capacity by 27%, and the number of additional beaches and green spaces by 78% as a result of new building. The number of hotel rooms in the city doubled between 1990 and 2004. More significantly, Barcelona's external image was altered, and by 2012, it was ranked fifth among European cities and 12th globally in terms of travel popularity.

Adelaide, the capital of South Australia, is often described as a city that strikes the perfect balance: not too big that you’re lost, yet large enough to offer rich culture, great food & wine, and beautiful nature. Here’s a comprehensive, human-friendly guide to exploring Adelaide: why it’s worth your visit, how to get there & around, where to stay, what to see, and how to make the most of your time.