The Pirelli tower is a well-known skyscraper in Milan, the tallest structure in the city (only the spires of Duomo cathedral come close) and the headquarters of the region of Lombardy, of which Milan is the capital. As its name suggests, its construction was sponsored by Pirelli, an Italian tire manufacturer, in 1950s. The Pirelli tower's sleek and elegant design does not at all resemble a standard block structure of the majority of other skyscrapers in the world, which earned the tower high praise among renowned urban architects. The Pirelli tower is also associated with a tragic accident of 2002, when a plane low on fuel crashed into the building, taking the lives of three people, including the pilot. This does not repel visitors from touring the Pirelli skyscraper, as it is open to public from time to time.