How about Barcelona, Spain? Is it suitable for immigration?

Barcelona, the capital of Catalonia Autonomous Region, is located on the Mediterranean coast in the northeast of Spain, surrounded by mountains and seas. It is the gateway to Iberian Peninsula, with an urban area of 9 1 km2 and an urban population of 1, 5 1, 000. With a peripheral area of 4 million, it is the second largest city in Spain and one of the most densely populated cities in the world.