Spain is a European country, however it is not of "Europe" so to speak in the sense that it has a completely unique identity and history thanks largely to the Pyrenees Mountains that physically isolate it from the rest of the Continent of Europe. Spain's seclusion contributed to the creation of unusual customs - bullfights, flamenco dancing, and a national obsession with ham!
With a population of 45 million, the country entertains 50 million tourists annually and there are so very many reasons why visitors from around the world want to come to Spain!