Spain's capital is Madrid, a city located in the center of the country. It is the largest city in Spain and the third-largest city in the European Union. Madrid is known for its rich culture, vibrant nightlife, and iconic landmarks such as the Royal Palace and the Prado Museum. The city is also home to many universities, making it an important educational center. Madrid has been the capital of Spain since 1561 and is the political, economic, and cultural center of the country.