Milan is the second most populous city proper in the country, but sits at the centre of Italy's largest urban and metropolitan area. While not considered as beautiful as some Italian cities, the city has rebuilt itself into a thriving cosmopolitan business capital. In essence, for a tourist, what makes Milan interesting compared to other places is that the city is truly more about the lifestyle of enjoying worldly pleasures: a paradise for shopping, football, opera, and nightlife. Milan remains the marketplace for Italian fashion – fashion aficionados, supermodels and international paparazzi. Milan is famous for its wealth of historical and modern sights - the Duomo, one of the biggest and grandest Gothic cathedrals in the world; La Scala, one of the best established opera houses in the world,; the Galleria Vittorio Emanuele, an ancient and glamorous arcaded shopping gallery; the Brera art gallery, with some of the finest artistic works in Europe; the Pirelli tower, a majestic example of 1960s modernist Italian architecture; the San Siro, a huge and famed stadium; and the Castello Sforzesco, a grand medieval castle.