Milan is one of the biggest cities in Italy, capital of high-quality furniture and interior design industry.Milan is widely regarded as a global capital in industrial design, fashion and architecture. In the 1950s and 60s, as the main industrial centre of Italy and one of Europe's most dynamic cities, Milan became a world capital of design and architecture. There was such a revolutionary change that Milan’s fashion exports accounted for $726 million in 1952, and by 1955 that number grew to $2.5 billion. Modern skyscrapers, such as the Pirelli Tower and the Torre Velasca were built, and artists such as Bruno Munari, Lucio Fontana, Enrico Castellani and Piero Manzoni gathered in the city. Today, Milan is still particularly well known for its high-quality furniture and interior design industry. The city is home to FieraMilano, Europe's largest permanent trade exhibition, and Salone Internazionale del Mobile, one of the most prestigious international furniture and design fairs.