Barcelona is the capital of Catalonia, an autonomous community in the north-east of Spain. It is the second largest city in Spain, after Madrid. It began its history in ancient times as a Roman city. Its history was rather rough, being besieged several times in the past, which lead to the formation of a rich cultural background. Because of this, the city became such an important touristic destination, attracting people from around the world. It is also one of the most important global cities in the world, the commerce, economics, art, education, science, fashion, media, and other domains contributing to its influential personality. The Port of Barcelona is as well one of the busiest passenger port in Europe, showing the large flux of visitors and travelers that get in and out of the city.