Milan is a city in northern Italy, the capital of Lombardy, and the second most populous city in Italy after Rome. Milan is a leading international city in fashion, design, banking, trade, and industry. The city hosts numerous cultural institutions, such as the National Gallery of Art of Milan, the Teatro alla Scala, and the Pinacoteca di Brera. Milan is also home to important scientific and technological institutions, such as the Polytechnic University of Milan and the Italian National Aeronautics and Space Agency. The city is served by a large number of airports, including Malpensa International Airport, Linate Airport, and Bergamo Orio al Serio International Airport.