Catalonia (Catalan: Catalunya, Occitan: Catalonha, Spanish: Cataluña) is an autonomous community of Spain politically designated as a nationality. Catalonia consists of four provinces: Barcelona, Girona, Lleida, and Tarragona. The capital and largest city is Barcelona, the second-largest city in Spain and the centre of one of the largest metropolitan areas in Europe and the Mediterranean basin.
Catalonia comprises most of the territory of the former Principality of Catalonia, with the remainder now part of France's Pyrénées-Orientales. It is bordered by France and Andorra to the north, the Mediterranean Sea to the east, and the Spanish autonomous communities of Aragon to the west and Valencia to the south. The official languages are Catalan, Spanish, and the Aranese dialect of Occitan.